In 2011, Hibbard suggested an intelligence measure for agents who compete in an adversarial sequence prediction game. We argue that Hibbard’s idea should actually be considered as two separate ideas: first, that the intelligence of such agents can be measured based on the growth rates of the runtimes of the competitors that they defeat; and second, one specific (somewhat arbitrary) method for measuring said growth rates. Whereas Hibbard’s intelligence measure is based on the latter growth-rate-measuring (...) method, we survey other methods for measuring function growth rates, and exhibit the resulting Hibbard-like intelligence measures and taxonomies. Of particular interest, we obtain intelligence taxonomies based on Big-O and Big-Theta notation systems, which taxonomies are novel in that they challenge conventional notions of what an intelligence measure should look like. We discuss how intelligence measurement of sequence predictors can indirectly serve as intelligence measurement for agents with Artificial General Intelligence (AGIs). (shrink)

This discussion paper describes the attempt of an imagined group of non-ecologists to determine the population growth rate from field data. The Modellers wrestle with the multiple definitions of the growth rate available in the literature and the fact that, in their modelling, it appears to be drastically model-dependent, which seems to throw into question the very concept itself. Specifically, they observe that six representative models used to capture the data produce growth-rate values, which differ significantly. Almost (...) ready to concede that the problem they set for themselves is ill-posed, they arrive at an alternative point of view that not only preserves the identity of the concept of the growth rate, but also helps discriminate between competing models for capturing the data. This is accomplished by assessing how robustly a given model is able to generate growth-rate values from randomized time-series data. This leads to the proposal of an iterative approach to ecological modelling in which the definition of theoretical concepts and model selection complement each other. The paper is based on high-quality field data of mites on apple trees and may be called a “data-driven opinion piece”. (shrink)

Microbial systems biology has made enormous advances in relating microbial physiology to the underlying biochemistry and molecular biology. By meticulously studying model microorganisms, in particular Escherichia coli and Saccharomyces cerevisiae, increasingly comprehensive computational models predict metabolic fluxes, protein expression, and growth. The modeling rationale is that cells are constrained by a limited pool of resources that they allocate optimally to maximize fitness. As a consequence, the expression of particular proteins is at the expense of others, causing trade‐offs between cellular (...) objectives such as instantaneous growth, stress tolerance, and capacity to adapt to new environments. While current computational models are remarkably predictive for E. coli and S. cerevisiae when grown in laboratory environments, this may not hold for other growth conditions and other microorganisms. In this contribution, we therefore discuss the relationship between the instantaneous growth rate, limited resources, and long‐term fitness. We discuss uses and limitations of current computational models, in particular for rapidly changing and adverse environments, and propose to classify microbial growth strategies based on Grimes's CSR framework. (shrink)

Angiogenesis is central to both the growth and metastasis of solid tumours. Anti‐angiogenic strategies result in blood vessel regression accompanied by tumour cell apoptosis. Radiotherapy and many chemotherapeutic agents kill tumours by inducing apoptotic cell death. We propose that, in addition to its role as an angiogenic factor, vascular endothelial growth factor (VEGF) can act as a survival factor for tumour cells protecting them from apoptosis. Thus anti‐angiogenics, in particular those directed against VEGF, have multiple anti‐ (...) class='Hi'>tumour effects. We suggest that anti‐VEGF strategies prevent vessel growth and block a tumour cell survival factor, VEGF, rendering tumour cells more sensitive to chemotherapy and radiotherapy. In addition, as chemotherapy and radiotherapy have been shown to increase VEGF expression, anti‐VEGF strategies may overcome therapy‐ induced tumour cell resistance. BioEssays 24:280–283, 2002. © 2002 Wiley Periodicals, Inc.; DOI 10.1002/bies.10043. (shrink)

Online tools are increasingly being used by students to cheat. File-sharing and homework-helper websites offer to aid students in their studies, but are vulnerable to misuse, and are increasingly reported as a major source of academic misconduct. Chegg.com is the largest such website. Despite this, there is little public information about the use of Chegg as a cheating tool. This is a critical omission, as for institutions to effectively tackle this threat, they must have a sophisticated understanding of their use. (...) To address this gap, this work reports on a comprehensive audit of Chegg usage conducted within an Australian university engineering school. We provide a detailed analysis of the growth of Chegg, its use within an Australian university engineering school, and the wait time to receive solutions. Alarmingly, we found over half of audit units had cheating content on Chegg is broadly used to cheat and 50% of questions asked on Chegg are answered within 1.5 h. This makes Chegg an appealing tool for academic misconduct in both assignment tasks and online exams. We further investigate the growth of Chegg and show its use is above pre-pandemic levels. This work provides valuable insights to educators and institutions looking to improve the integrity of their courses through assessment and policy development. Finally, to better understand and tackle this form of misconduct, we call on education institutions to be more transparent in reporting misconduct data and for homework-helper websites to improve defences against misuse. (shrink)

Modern strains of broiler chicken are capable of achieving a 2.4 kg liveweight at 42d of age. This extremely fast growth is accomplished in part by balanced diets containing pharmaceutical growth promoting compounds. Over the last few years, a number of ethical questions have arisen regarding the use of such compounds. Such fast growth rate is accompanied by reduced bird welfare related to morbidity and mortality of a proportion of the birds. In two trials we have shown (...) that acceptable growth rate can be achieved in diets without these compounds, and that economics of production are not adversely affected. It is concluded that future management programs for broiler chickens should consider a tempering of growth rate and that this could lead to improved bird well-being. (shrink)

Gypsy people are the most poorly considered minority in Spain. Their current circumstances in relation to growth rate and trend variation in this country are not well known. The main objective of this paper is to show what happens to a person's growth process in a transitional minority group affected by the process of globalisation. As target population and the articulation of social actions to have an implementation of quality of life is an additional objective. The research team, (...) in collaboration with “Apoyo”, an NGO, made contact with each Gypsy family. The sample comprised 189 boys aged 5 to 14 years. The boys and their families have been rehoused in two large buildings, named “Ruedo” and “Herradura”, in an attempt to accommodate the marginal Gypsy population following the disappearance of their shanties in Madrid. Morphological and physiological variables were considered as well as social situation and nutritional habits. Large family size (5–6 children), smoking and coffee- drinking habits and the intake of less than the internationally recommended number of calories after the age of 8 years endangers the healthy growth of these European Union citizens. (shrink)

The aim of this article is to inquire about potential relationship between change of crime rates and change of gross domestic product growth rate, based on historical statistics of Japan. This national-level study used a dataset covering 88 years and 13 attributes. The data were processed with the self-organizing map, separation power checked by our ScatterCounter method, assisted by other clustering methods and statistical methods for obtaining comparable results. The article is an exploratory application of the SOM in (...) research of criminal phenomena through processing of multivariate data. The research confirmed previous findings that SOM was able to cluster efficiently the present data and characterize these different clusters. Other machine learning methods were applied to ensure clusters computed with SOM. The correlations obtained between GDP and other attributes were mostly weak, with a few of them interesting. (shrink)

Globalization hampers the growth level of the countries, then this raising growth rate helps to improve the living standard and reduce inequalities among the masses, that finally downgrade the poverty level of the nations, is the way that global institutions favor it. The debate on rightness of the measures taken for globalization to the socioeconomic development of emerging economies is prolonged and still controversial too. This paper attempts to address the impacts of measures taken for globalization specially with (...) reference to its benefits and harms associated to growth and poverty alleviation in Pakistan. In order to examine the effects of trade liberalization on output growth and poverty, Toda-Yamamoto Granger causality is used, by taking data of last 30 years i.e. 1985 to 2015. The empirical findings and review of literature done in the study is consistent with the judgment of prior studies as concluding the hybrid type effects of globalization to the socio-economic conditions i.e. growth and poverty, of Pakistan. (shrink)

Baumard proposes that life history slowing in populations over time is the principal driver of innovation rates. We show that this is only true of micro-innovation rates, which reflect cognitive and economic specialization as an adaptation to high population density, and not macro-innovation rates, which relate more to a population's level of general intelligence.

Over the last few years, oncolytic virus therapy has been recognised as a promising approach in cancer treatment, due to the potential of these viruses to induce systemic anti-tumour immunity and selectively killing tumour cells. However, the effectiveness of these viruses depends significantly on their interactions with the host immune responses, both innate and adaptive. In this article, we consider a mathematical approach to investigate the possible outcomes of the complex interactions between two extreme types of macrophages, effector (...) $$\hbox {CD8}^{+}$$ T cells and an oncolytic Vesicular Stomatitis Virus, on the growth/elimination of B16F10 melanoma. We discuss, in terms of VSV, $$\hbox {CD8}^{+}$$ and macrophages levels, two different types of immune responses which could ensure tumour control and eventual elimination. We show that both innate and adaptive anti-tumour immune responses, as well as the oncolytic virus, could be very important in delaying tumour relapse and eventually eliminating the tumour. Overall this study supports the use mathematical modelling to increase our understanding of the complex immune interaction following oncolytic virotherapies. However, the complexity of the model combined with a lack of sufficient data for model parametrisation has an impact on the possibility of making quantitative predictions. (shrink)

In order to accomplish the transition from avascular to vascular growth, solid tumours secrete a diffusible substance known as tumour angiogenesis factor (TAF) into the surrounding tissue. Endothelial cells which form the lining of neighbouring blood vessels respond to this chemotactic stimulus in a well-ordered sequence of events comprising, at minimum, of a degradation of their basement membrane, migration and proliferation. Capillary sprouts are formed which migrate towards the tumour eventually penetrating it and permitting vascular growth (...) to take place. It is during this stage of growth that the insidious process of invasion of surrounding tissues can and does take place. A model mechanism for angiogenesis is presented which includes the diffusion of the TAF into the surrounding host tissue and the response of the endothelial cells to the chemotactic stimulus. Numerical simulations of the model are shown to compare very well with experimental observations. The subsequent vascular growth of the tumour is discussed with regard to a classical reaction-diffusion pre-pattern model. (shrink)

This book documents the growth of unproductive activity in the United States economy since World War II and its relation to the economic surplus, capital accumulation, and economic growth. Unproductive activities broadly consist of those involved in the circulation process, including wholesaling and retailing, banking and financial services, advertising, legal services, business services and many government activities. The results indicate that the level of unproductive activity in the postwar economy has been a significant factor in the slowdown in (...) the rate of capital accumulation, productivity growth and the overall growth rate. Here, the villain is shown to be the gradual but persistent shift of resources to unproductive activities. The consequence has been a reduction in new capital formation and productivity growth and an erosion in the rate of growth in per capita living standards. Moreover, the rise in unproductive activity is itself seen to be rooted in the logic of advanced capitalism. The forces of competition, which in the early stages of capitalism lead to rapid technical change and productivity growth, promote non-productive and even counterproductive activities in its more advanced stages. (shrink)

Mathematical models of tumour invasion appear as interesting tools for connecting the information extracted from medical imaging techniques and the large amount of data collected at the cellular and molecular levels. Most of the recent studies have used stochastic models of cell translocation for the comparison of computer simulations with histological solid tumour sections in order to discriminate and characterise expansive growth and active cell movements during host tissue invasion. This paper describes how a deterministic approach based (...) on reaction-diffusion models and their generalisation in the mechano-chemical framework developed in the study of biological morphogenesis can be an alternative for analysing tumour morphological patterns. We support these considerations by reviewing two studies. In the first example, successful comparison of simulated brain tumour growth with a time sequence of computerised tomography (CT) scans leads to a quantification of the clinical parameters describing the invasion process and the therapy. The second example considers minimal hypotheses relating cell motility and cell traction forces. Using this model, we can simulate the bifurcation from an homogeneous distribution of cells at the tumour surface toward a nonhomogeneous density pattern which could characterise a pre-invasive stage at the tumour-host tissue interface. (shrink)

Population growth and demographic change are two distinct but interconnected phenomena of population development. Population growth refers to the quantitative change of a population over time and is usually expressed as a growth rate in percentage terms relative to the respective population. A population growth rate greater than 0 indicates that the population is increasing, while negative population growth signifies a numerical decline. Demographic change encompasses shifts in birth and death rates, age structure, gender (...) ratios, and migration (emigration and immigration). Population growth and demographic change can lead to ethical challenges in areas such as the environment and nutrition, reproduction, intergenerational and gender equity, and migration. ------ Bevölkerungswachstum und demographischer Wandel sind zwei distinkte, aber zusammenhängende Phänomene der Bevölkerungsentwicklung. Das Bevölkerungswachstum bezeichnet die quantitative Veränderung einer Population über die Zeit und wird meist als Wachstumsrate in Prozent der jeweiligen Bevölkerung ausgedrückt. Ein Bevölkerungswachstum, dessen Wert größer als 0 ist, bedeutet, dass die Bevölkerung zunimmt; negatives Bevölkerungswachstum bedeutet eine zahlenmäßige Abnahme. Verschiebungen hinsichtlich der Geburten- und Sterberaten, der Altersstruktur, der Geschlechterverhältnisse sowie der Migration (Emigration und Immigration) machen den demographischen Wandel aus. Bevölkerungswachstum und demographischer Wandel können u.a. zu ethischen Problemen in den Bereichen Umwelt und Ernährung, Reproduktion, Generationen- und Geschlechtergerechtigkeit sowie Migration führen. (shrink)

The study aims to measure the link between CSR and economic growth. This study investigates whether CSR expenses shown by the banks are contributing to the sustainability of an emerging economy like India. For this study, CSR spending of 21 commercial banks, on nine development areas of the Indian economy, the human development index of India, and its indicators along with the growth rate of GDP of India and state-wise GDP for the year 2014-2015 to 2017-2018 have been (...) taken as secondary data. The research techniques used are the case analysis method, correlation, and descriptive analysis. The study highlights that CSR activities are more of a myth and a far-reaching possibility in developing nations like India, where most institutions are engrossed in such activities to gain laurels and secure investors from the globe. (shrink)

A simple exogenous growth model gives conservative estimates of the economic implications of machine intelligence. Machines complement human labor when they become more productive at the jobs they perform, but machines also substitute for human labor by taking over human jobs. At first, expensive hardware and software does only the few jobs where computers have the strongest advantage over humans. Eventually, computers do most jobs. At first, complementary effects dominate, and human wages rise with computer productivity. But eventually substitution (...) can dominate, making wages fall as fast as computer prices now do. An intelligence population explosion makes per-intelligence consumption fall this fast, while economic growth rates rise by an order of magnitude or more. These results are robust to automating incrementally, and to distinguishing hardware, software, and human capital from other forms of capital. (shrink)

If rapid growth (rap) mutants of Escherichia coli could be obtained, these might prove a valuable contribution to fields as diverse as growth rate control, biotechnology and the regulation of the bacterial cell cycle. To obtain rap mutants, a dnaQ mutator strain was grown for four and a half days continuously in batch culture. At the end of the selection period, there was no significant change in growth rate. This result means that selecting rap mutants may require (...) an alternative strategy and a number of such alternatives are discussed. (shrink)

The filamentous and branched thallus of Antithamnion plumula is constitued of two different kinds of branches with apical growth: the cladomial axes with a continuous or indefinite growth, and the pleuridia with a limited growth. The size of the pleuridia depends on their position with respect to the lateral cladomial axes.The growth kinetics of 35 pleuridia were analysed using Nelder's generalized logistics. Each sigmoidal curve, which was divided into four growth stages from the instantaneous acceleration (...) variations, was thus characterized by ten kinetic parameters: lengths at the time of the changes in growth stage, durations of the growth stages and maximum growth rate. (shrink)

A basic model of hierarchical structure, expressed by simple, linear differential equations, shows that the pattern of population growth is essentially determined by conditions of redundancy in the sub-structure of individuals. There does not exist any possible combination between growth rate and accident rate that could balance population numbers and/or the level of redundancy within the population; all possible combinations either lead to extinction or to positive population growth with a decline of the fraction of individuals with (...) redundant substructure. Declining populations, however, can be held fluctuating between certain limits by periodic phases of sub-unit repair. These results are particularly pertinent to the population dynamics of diploid (polyploid) organisms. (shrink)

In the last two decades, there has been a pronounced growth of CSR rating agencies that assess corporations based on their social and environmental performance. This article investigates the impact of CSR ratings on the behavior of individual corporations. To what extent do corporations adjust their behavior based on how they rank? Our primary finding is that being dropped from a CSR ranking appears to do little to encourage firms to acknowledge and address problems related to their social and (...) environmental performance. Specific rankings appear not to have a widespread effect of influencing firms to acknowledge negative CSR events and publicly present plans and actions to address them. Whether firms are well or poorly ranked, they appear to focus on and publicly discuss their “positive” CSR activities. We discuss the wider significance of these results as well as the overall significance of CSR rankings for a global economy. (shrink)

The temporal profile of dendritic branching in developing neurons is an interplay between the proliferating number of branching sites and the branching rates at these individual sites. The eventual metrical structure of dendritic arborizations is the outcome of joint processes of branching and elongation of outgrowing neurites. Dendritic growth models have shown to be powerful tools for quantitatively studying the rules of outgrowth, aiming at reproducing the shape characteristics in observed dendritic arborizations. Recent model studies, focusing on the (...) branching process, have predicted strongly decreasing branching rates during dendritic outgrowth. The implications of these findings for the metrical development of outgrowing dendrites will be discussed. (shrink)

We prove that a function definable with parameters in an o-minimal structure is bounded away from ∞ as its argument goes to ∞ by a function definable without parameters, and that this new function can be chosen independently of the parameters in the original function. This generalizes a result in [1]. Moreover, this remains true if the argument is taken to approach any element of the structure , and the function has limit any element of the structure.

During balanced growth of cells in culture all extensive properties of the culture — e.g. cell number, total mass, total DNA content — increase exponentially at the same specific growth rate. Therefore, in some average sense, each component of a cell must double between birth and division. For DNA there exists an elaborate mechanism to ensure precise replication of the genetic material and accurate partitioning of identical copies of the genome to the two daughter cells. Do cells possess (...) another mechanism that intentionally relates the timing of cell division to overall increase in cell size, or is the coordination of growth and division an incidental consequence of size‐independent rules for progress through the cell cycle?. (shrink)

The Standard Progressive Matrices test was standardized in Estonia on a representative sample of 4874 schoolchildren aged from 7 to 19 years. When the IQ of Estonian children was expressed in relation to British and Icelandic norms, both demonstrated a similar sigmoid relationship. The youngest Estonian group scored higher than the British and Icelandic norms: after first grade, the score fell below 100 and remained lower until age 12, and after that age it increased above the mean level of these (...) two comparison countries. The difference between the junior school children and the secondary school children may be due to schooling, sampling error or different trajectories of intellectual maturation in different populations. Systematic differences in the growth pattern suggest that the development of intellectual capacities proceeds at different rates and the maturation process can take longer in some populations than in others. (shrink)

Size control depends on both the regulation of growth rate and the control over when to stop growing. Studies of Drosophila melanogaster have shown that insulin and Target of Rapamycin (TOR) pathways play principal roles in controlling nutrition‐dependent growth rates. A TOR‐mediated nutrient sensor in the fat body detects nutrient availability, and regulates insulin signaling in peripheral tissues, which in turn controls larval growth rates. After larvae initiate metamorphosis, growth stops. For growth to (...) stop at the correct time, larvae need to surpass a critical weight. Recently, it was found that the insulin‐dependent growth of the prothoracic gland is involved in assessing when critical weight has been reached. Furthermore, mutations in DHR4, a repressor of ecdysone signaling, reduce critical weight and adult size. Thus, the mechanisms that control growth rates converge on those assessing size to ensure that the larvae attain the appropriate size at metamorphosis. BioEssays 29:344–355, 2007. © 2007 Wiley Periodicals, Inc. (shrink)

This paper discusses the evidence for the role of CREB in neural stem/progenitor cell (NSPC) function and oncogenesis and how these functions may be important for the development and growth of brain tumours. The cyclic‐AMP response element binding (CREB) protein has many roles in neurons, ranging from neuronal survival to higher order brain functions such as memory and drug addiction behaviours. Recent studies have revealed that CREB also has a role in NSPC survival, differentiation and proliferation. Recent work has (...) shown that over‐expression of CREB in transgenic animals can impart oncogenic properties on cells in various tissues and that aberrant CREB expression is associated with tumours in patients. It is the central position of CREB, downstream of key developmental and growth signalling pathways, which give CREB the ability to influence a spectrum of cell activities, such as cell survival, growth and differentiation in both normal and cancer cells. (shrink)

In the first thirty years after World War II, the US economy performed very well. The rate of growth averaged 4—5%, the rate of unemployment was seldom above 5%, inflation was almost non-existent, and the living standards of workers improved steadily. These were the ‘good old days'. However, this long period of expansion and prosperity ended in the 1970s. Since then, both the rate of unemployment and the rate of inflation have been much higher than before, and the average (...) real wages of workers have declined some 20%. Productivity growth has also slowed down and the debt burden of both capitalist enterprises and the Federal government has increased dramatically. It is in this sense that we may refer to the ‘economic crisis’ of the US economy over the last two decades. This crisis has certainly not been as severe as the Great Depression of the 1930s, but the economic performance has been significantly worse than in the early post-war period. (shrink)

Theoretical arguments regarding the effect of corporate social responsibility (CSR) on firm liability risk are abundant; however, empirical evidence about this relationship is scarce. We investigate the relationship between CSR and the personal liability risk of a firm’s directors and officers. We argue that companies with better CSR performance represent a better underwriting risk for directors’ and officers’ (D&O) insurance providers and, therefore, have a lower cost of insurance. Our results show that firms with better CSR performance are more likely (...) to purchase D&O insurance and have a lower premium-to-coverage ratio, known as the insurance rate-on-line. We also show that this risk-reduction effect is stronger for firms that operate in a high-risk environment and have higher sales growth. These results provide evidence that CSR can be used as a risk management tool to mitigate liability risk and suggest which firms benefit most from this effect. (shrink)

The global coronavirus pandemic has had an impact on the socio-economic development of the world. The article assesses the economic growth in the EAEU member States for 2020. Specific features of the development of the Union's economies are defined. Recommendations for increasing the rate of economic growth are formulated.

For most of the vast span of human history, economic growth was all but nonexistent. Then, about two centuries ago, some nations began to emerge from this epoch of economic stagnation, experiencing sustained economic growth that led to significant increases in standards of living and profoundly altered the level and distribution of wealth, population, education, and health across the globe. The question ever since has been--why? This is the first book to put forward a unified theory of economic (...) growth that accounts for the entire growth process, from the dawn of civilization to today. Oded Galor, who founded the field of unified growth theory, identifies the historical and prehistorical forces behind the differential transition timing from stagnation to growth and the emergence of income disparity around the world. Galor shows how the interaction between technological progress and population ultimately raised the importance of education in coping with the rapidly changing technological environment, brought about significant reduction in fertility rates, and enabled some economies to devote greater resources toward a steady increase in per capita income, paving the way for sustained economic growth. Presents a unified theory of economic growth from the dawn of civilization to today Explains the worldwide disparities in living standards and population we see today Provides a comprehensive overview of the three phases of the development process Analyzes the Malthusian theory and its empirical support Examines theories of demographic transition and their empirical significance Explores the interaction between economic development and human evolution. (shrink)

The role of China in the world economy is constantly growing. In particular we observe that it plays more and more important role in the support of theworld economic growth (as well as high prices of certain very important commodities). In the meantime the perspectives of the Chinese economy (as well as possible fates of the Chinese society) remain unclear, whereas respective forecasts look rather contradictory. That is why the search for new aspects and modes of analysis of possible (...) development of China turns out to be rather important for the forecasting of global futures. This article employs a combination of scientific methods that imply (a) the analysis at the level of Chinese economic model; (b) the analysis at regional level (at this level the Chinese economic model is compared with the regional East Asian model); (c) the analysis at the global level that relies on the modified world-system approach that allows to answer the question whether China will replace the USA as the global leader. It is important that the analysis is conducted simultaneously in economic, social, demographic, and political dimensions. As regards the analysis of specific features of the Chinese model as an especial type of the East Asian model (that is based on the export orientation, capital & technology importation, as well as cheap labor force), we note as organic features of the Chinese model the totalitarian power of the Communist Party and the immenseness of resources. As regards special features of the Chinese model, we note (in addition to “cheap ecology” and cheap labor force) and emphasize that China has a multilevel (in a way unique) system of growth driving forces, where, as opposed to developed states, the dominant role belongs not to native private capital, but to state corporations, local authorities and foreign business. This explains the peculiarities of the Chinese investment (or rather overinvestment), which determines high growth rate up to a very significant degree. A unique feature of the Chinese model is the competition of provinces and territories for investments and high growth indicators. As regards perspectives of the global hegemony of China, we intend to demonstrate that, on the one hand, economic and political positions of China will strengthen in the forthcoming decades, but, on the other hand, China, assuming all possible future success, will be unable to take the USA position in the World System. We believe that in a direct connection with the development of globalization processes the hegemony cycle pattern is likely to come to its end, which will lead to the World System reconfiguration and the emergence of its new structure that will allow the World System to continue its further development without a hegemon. Finally, the article describes some possible scenarios of the development of China. We demonstrate that China could hardly avoid serious difficulties and critical situations (including those connected with demographic problems); however, there could be different scenarios of how China will deal with the forthcoming crisis. We also come to the conclusion that it would be better for China to achieve a slowdown to moderate growth rates (that would allow China to go through the forthcoming complex transition period with less losses) than to try to return at any cost to explosive growth rates attested in the 2000s. (shrink)

I argue that the use of a social discount rate to assess the consequences of climate policy is unhelpful and misleading. I consider two lines of justification for discounting: (i) ethical arguments for a "pure rate of time preference" and (ii) economic arguments that take time as a proxy for economic growth and the diminishing marginal utility of consumption. In both cases I conclude that, given the long time horizons, distinctive uncertainties, and particular costs and benefits at stake in (...) the climate context, discount rates are at best a poor proxy for the normative considerations they are meant to represent. (shrink)

This article studied the influence of Labor Contract Law and employee psychological contract on enterprise investment and sustainable economic growth. The results indicate that the Labor Protection Law has no significant influence on the investment of state-owned enterprises. In the early stage of the implementation of Labor Protection Law, the Labor protection Law will observably reduce the investment level of private enterprises, and this effect is more obvious in labor-intensive industries and small and medium-sized enterprises. However, in the later (...) stage of the implementation of Labor Protection Law, the impact of Labor protection Law on the investment of private listed companies is weak. The results indicate that the Labor protection Law increases the illegal costs of private enterprises, reduces the flexibility of employment, and ultimately reduces the investment level of enterprises. Moreover, our article examines the impact of the Labor protection Law on regional economic growth, and finds that the Labor protection Law will significantly reduce the regional GDP growth rate in China, and this effect is mainly reflected in the regions where private enterprises provide more jobs and the proportion of private economy is high. This article takes China’s emerging markets as the background, on the one hand, expands the relevant research on labor market friction from the viewpoint of enterprise investment and economic growth, on the other hand, provides new evidence for state-owned enterprises to fulfill social goals. (shrink)

Of all global problems world population growth is the most significant. The growth of the number of people expresses the sum outcome of all economic, social and cultural activities that comprise human history. Demographic data in a concise and quantitative way describe this process in the past and present. By applying the concepts of nonlinear dynamics and synergetics, it is possible to work out a mathematical model for a phenomenological description of the global demographic process and project its (...) trends into the future. Assuming self-similarity as the dynamic principle of development, growth can be described over practically the whole of human history, with a growth rate proportional to the square of the number of people. This is due to a collective interaction, responsible for the growth of human numbers, as the result of the informational nature of development. The large parameter of the theory and the effective size of a coherent population group is of the order of 105. As the microscopic parameter of the phenomenology, the human life span is introduced into the theory. Estimates of the beginning of human development 4-5 million years ago and of the total number of people who have ever lived since then ≈ 100 billion are made. In the framework of the model, large scale cycles defined by history and anthropology are shown to follow an exponential pattern of growth, culminating in the demographic transition, a veritable revolution when population growth is to stabilize at 10 to 12 billion. (shrink)