A distinction is drawn between property causation and token causation. According to the former, a positive causal factor in a population raises the probability of its effects within "background contexts". The latter, which concerns "actual physical connections" between token events, is not explicated here although its distinctness from the first concept and its importance are discussed. The applicability of both is illustrated by two currently controversial issues in evolutionary theory -- the units of selection controversy and the use of parsimony (...) as an inference rule in phylogenetic reconstruction. (shrink)

Much of the philosophical literature on causation has focused on the concept of actual causation, sometimes called token causation. In particular, it is this notion of actual causation that many philosophical theories of causation have attempted to capture.2 In this paper, we address the question: what purpose does this concept serve? As we shall see in the next section, one does not need this concept for purposes of prediction or rational deliberation. What then could the purpose be? We will argue (...) that one can gain an important clue here by looking at the ways in which causal judgments are shaped by people‘s understanding of norms. (shrink)

Reichenbach’s Common Cause Principle is the claim that if two events are correlated, then either there is a causal connection between the correlated events that is responsible for the correlation or there is a third event, a so called (Reichenbachian) common cause, which brings about the correlation. The paper reviews some results concerning Reichenbach’s notion of common cause, results that are directly relevant to the problem of how one can falsify Reichenbach’s Common Cause Principle. Special emphasis (...) will be put on the question of whether EPR-type correlations can have an explanation in terms of Reichenbachian common causes. Most of the results to be recalled indicate that falsifying Reichenbach’s Common Cause Principle is much more tricky than one may have thought and that, contrary to some claims in the literature, there is no conclusive proof yet that the EPR correlations predicted by ordinary, non-relativistic quantum mechanics cannot have a common cause; furthermore, recent results about possible Reichenbachian common causes of correlations predicted by quantum field states between spacelike separated local observable algebras in algebraic quantum field theory strongly indicate that there may very well exist Reichenbachian common causes of superluminal correlations predicted by quantum field theory. (shrink)

When and where did consciousness emerge in the course of evolution? Did it happen as recently as the past million years, for example concomitant with language or tool making in humans or primates? Or did consciousness arrive somewhat earlier, with the advent of mammalian neocortex 200 million years ago (Eccles, 1992)? At the other extreme, is primitive consciousness a property of even simple unicellular organisms of several billion years ago (e.g. as suggested by Margulis and Sagan, 1995)? Or did consciousness (...) appear at some intermediate point, and if so, where and why? Whenever it first occurred, did consciousness alter the course of evolution? (shrink)

How do people understand questions about cause and prevent? Some theories propose that people affirm that A causes B if A's occurrence makes a difference to B's occurrence in one way or another. Other theories propose that A causes B if some quantity or symbol gets passed in some way from A to B. The aim of our studies is to compare these theories' ability to explain judgements of causation and prevention. We describe six experiments that compare judgements for (...) causal paths that involve a mechanism, i.e. a continuous process of transmission or exchange from cause to effect, against paths that involve no mechanism yet a change in the cause nevertheless brings about a change in the effect. Our results show that people prefer to attribute cause when a mechanism links cause to effect. In contrast, prevention is sensitive both to the presence of an interruption to a causal mechanism and to a change in the outcome in the absence of a mechanism. In this sense, ‘prevent’ means something different than ‘cause not'. We discuss the implications of our results for existing theories of causation. (shrink)

We investigate the formal cause of diagrams, initially realizing that diagrams have no obvious form. It is argued their form is to mimic expert perspectives. This perspective provides a organizational structure that represents the relations important in understanding the worldly situation. We then shift to a study of how we are to understand an expert perspective. Using the distinction between intuitive and formal logic, logica utens versus logica docens, we identify games of habituation: games of focus and distraction. The (...) skills required for games of focus and distraction are phenomenological in regulating the way we see, i.e., how we approach and analyze different situations. This unique phenomenological skill is characteristic of diagrammatic reasoning. (shrink)

Richard Taylor was born in Charlotte, Michigan on 5 November 1919. He received his A. B. from the University of illinois in 1941, his M. A. from Oberlin College in 1947, and his Ph. D. from Brown University in 1951. He has been William H. P. Faunce Professor of Philosophy at Brown University, Professor of Philosophy (Graduate Faculties) at Columbia University, and Professor of Philosophy at the University of Rochester. He is the author of about fifty articles and of five (...) philosophical books. This volume consists of essays presented to Richard Taylor on the occa sion of his sixtieth birthday. Some of the contributors have been Taylor'S students; some have been his colleagues; and all have been, and continue to be, his admirers. I have made several attempts to articulate what it is I (I would not presume to speak for anyone else) admire about Richard Taylor: (1) There is a particular 'flavor' to Taylor's philosophical writing and con versation that is wholly delightful. Like any other flavor, it can be tasted and enjoyed and remembered but never adequately described. (If there should be someone who has picked up this book who does not know what I mean, I recommend that he read the chapter on 'God' in Taylor's Metaphysics. ) (2) Taylor is a masterful dialectician. (shrink)

Reichenbach's principles of a probabilistic common cause of probabilistic correlations is formulated in terms of relativistic quantum field theory, and the problem is raised whether correlations in relativistic quantum field theory between events represented by projections in local observable algebrasA(V1) andA(V2) pertaining to spacelike separated spacetime regions V1 and V2 can be explained by finding a probabilistic common cause of the correlation in Reichenbach's sense. While this problem remains open, it is shown that if all superluminal correlations predicted (...) by the vacuum state between events inA(V1) andA(V2) have a genuinely probabilistic common cause, then the local algebrasA(V1) andA(V2) must be statistically independent in the sense of C*-independence. (shrink)

When in classical formal logic the notions of deduction, valid inference and logical consequence are defined, causal language plays no role. The founder of western logic, Aristotle, identified ‘non-cause’, or ‘positing as cause what is not a cause’, as a logical fallacy. I argue that a systematic re-examination of Aristotle's analysis of NCF, and the related language of logical causality, in the Sophistical Refutations, Topics, Analytics and Rhetoric, helps us to understand his conception of. It reveals that (...) Aristotle's syllogismhood is non-monotonic, and thus narrower than classical validity as consisting in, or coextensive with, necessary truth-preservation. It also supports the conclusion that a syllogism is a form of relevant consequence: the premisses must be causes of the conclusion in the sense that they are not only sufficient but also necessary for the conclusion to follow. Close analysis of NCF also suggests that syllogistic relevance is not a semantic matter, but a syntactic.. (shrink)

This paper deals with Hans Reichenbach's common cause principle. It was propounded by him in, and has been developed and widely applied by Wesley Salmon, e.g. in and. Thus, it has become one of the focal points of the continuing discussion of causation. The paper addresses five questions. Section 1 asks: What does the principle say? And section 2 asks: What is its philosophical significance? The most important question, of course, is this: Is the principle true? To answer that (...) question, however, one must first consider how one might one argue about it at all. One can do so by way of examples, the subject of section 3, or more theoretically, which is the goal of section 4. Based on an explication of probabilistic causation proposed by me in,, and, section 4 shows that a variant of the principle is provable within a classical framework. The question naturally arises whether the proved variant is adequate, or too weak. This is pursued in section 5. My main conclusion will be that some version of Reichenbach's principle is provably true, and others may be. This may seem overly ambitious, but it is not. The paper does not make any progress on essential worries about the common cause principle arising in the quantum domain; it only establishes more rigorously what has been thought to be plausible at least within a classical framework. (shrink)

Several evolutionary biologists have used a parsimony argument to argue that the single gene is the unit of selection. Since all evolution by natural selection can be represented in terms of selection coefficients attaching to single genes, it is, they say, "more parsimonious" to think that all selection is selection for or against single genes. We examine the limitations of this genic point of view, and then relate our criticisms to a broader view of the role of causal concepts and (...) the dangers of reification in science. (shrink)

As part of their corporate social responsibility, many organizations practice cause-related marketing, in which organizations donate to a chosen cause with every consumer purchase. The extant literature has identified the importance of the fit between the organization and the nature of the cause in influencing corporate image, as well as the influence of a connection between the cause and consumer preferences on brand attitudes and brand choice. However, prior research has not addressed which cause composition (...) most appeals to consumers or the impact of cause choice on corporate image. A between-subjects field experiment in the Netherlands examines the influence of three core cause attributes—cause type, cause scope, and cause acuteness—on consumers’ perceptions of corporate image. Furthermore, this experiment examines the extent to which consumer identification with the cause mediates the influence of the cause attributes on corporate image. The findings indicate that identification with the cause leads to more positive evaluations of marketing campaigns for cause type and cause scope. Also, however, our results uncover a negative direct relationship between cause scope and corporate image. Cause acuteness is only marginally influential in corporate image perceptions. By proposing and testing a comprehensive model of the influence of cause attributes on corporate image in cause-related marketing, this article provides important implications and suggests avenues for further research. (shrink)

The verbs cause, enable, and prevent express beliefs about the way the world works. We offer a theory of their meaning in terms of the structure of those beliefs expressed using qualitative properties of causal models, a graphical framework for representing causal structure. We propose that these verbs refer to a causal model relevant to a discourse and that “A causes B” expresses the belief that the causal model includes a link from A to B. “A enables/allows B” entails (...) that the model includes a link from A to B, that A represents a category of events necessary for B, and that an alternative cause of B exists. “A prevents B” entails that the model includes a link from A to B and that A reduces the likelihood of B. This theory is able to account for the results of four experiments as well as a variety of existing data on human reasoning. (shrink)

As part of their corporate social responsibility, many organizations practice cause-related marketing, in which organizations donate to a chosen cause with every consumer purchase. The extant literature has identified the importance of the fit between the organization and the nature of the cause in influencing corporate image, as well as the influence of a connection between the cause and consumer preferences on brand attitudes and brand choice. However, prior research has not addressed which cause composition (...) most appeals to consumers or the impact of cause choice on corporate image. A between-subjects field experiment in the Netherlands examines the influence of three core cause attributes—cause type, cause scope, and cause acuteness—on consumers’ perceptions of corporate image. Furthermore, this experiment examines the extent to which consumer identification with the cause mediates the influence of the cause attributes on corporate image. The findings indicate that identification with the cause leads to more positive evaluations of marketing campaigns for cause type and cause scope. Also, however, our results uncover a negative direct relationship between cause scope and corporate image. Cause acuteness is only marginally influential in corporate image perceptions. By proposing and testing a comprehensive model of the influence of cause attributes on corporate image in cause-related marketing, this article provides important implications and suggests avenues for further research. (shrink)

This article presents two studies that examine cause-related marketing promotions that require consumers’ active participation. Requiring a follow-up behavior has very valuable implications for maximizing marketing expenditures and customer relationship management. Theories related to ethical behavior, like motivated reasoning and defensive denial, are used to explain when and why consumers respond negatively to these effort demands. The first study finds that consumers rationalize not participating in CRM by devaluing the sponsored cause. The second study identifies a tactic marketers (...) can utilize to neutralize consumers’ use of defensive denial. Allowing the consumer to choose the sponsored cause seems to effectively refocus their attention and increases consumers’ threshold for campaign requirements. Implications for nonprofits and marketing managers include a tendency for consumers to be more likely to perceive a firm as ethical and socially responsible when they are allowed to choose the specific cause that is supported. (shrink)

This research was focused on investigating why some consumers might support cause-related marketing campaigns for reasons other than personal benefit by examining the influence of moral emotions and cultural orientation. The authors investigated the extent to which moral emotions operate differently across a cultural variable (US versus Korea) and an individual difference variable (self-construal). A survey method was utilised. Data were collected from a convenience sample of US ( n = 180) and Korean ( n = 191) undergraduates. Moral (...) emotions significantly influenced purchase intention for a social-cause product. The influence of an ego-focused moral emotion (i.e., pride) on purchase intention was greater for US than Korean participants. The influence of another-focused moral emotion (i.e., guilt) on purchase intention was greater for high-interdependent participants than for low-interdependent participants. The findings of this research provide important and relevant implications to marketers and policy makers in developing persuasive messages and customer relationship programmes. (shrink)

This paper considers Newton’s position on gravity’s cause, both conceptually and historically. With respect to the historical question, I argue that while Newton entertained various hypotheses about gravity’s cause, he never endorsed any of them, and in particular, his lack of confidence in the hypothesis of robust and unmediated distant action by matter is explained by an inclination toward certain metaphysical principles. The conceptual problem about gravity’s cause, which I identified earlier along with a deeper problem about (...) individuating substances, is that a decisive conclusion is impossible unless certain speculative aspects of his empiricism are abandoned. In this paper, I situate those conceptual problems in Newton’s natural philosophy. They arise from ideas that push empiricism to potentially self-defeating limits, revealing the danger of allowing immaterial spirits any place in natural philosophy, especially spatially extended spirits supposed capable of co-occupying place with material bodies. Yet because their source ideas are speculative, Newton’s method ensures that these problems pose no threat to his rational mechanics or the profitable core of his empiricism. They are easily avoided by avoiding their source ideas, and when science emerges from natural philosophy, it does so with an ontology unencumbered by immaterial spirits. (shrink)

Kant's category of reality is an often overlooked element of his Critique of Pure Reason. Tal Glezer shows that it nevertheless belongs at the core of Kant's mature critical philosophy: it captures an issue that motivated his critical turn, shaped his theory of causation, and established the role of his philosophy of science. Glezer's study traces the roots of Kant's category of reality to early modern debates over the intelligibility of substantial forms, fueled by the tension between the idea of (...) non-extended substances and that of extended objects. This tension influenced Kant's pre-critical work, and eventually inspired his radical break towards transcendental idealism. Glezer explores the importance of reality for Kant's conceptions of cause and force, and sheds new light on his philosophy of physical science, including gravity. His book will interest scholars of Kant and of early modern philosophy, as well as historians of scientific ideas. (shrink)

I argue that Aristotle’s account of scientific demonstrations in the Posterior Analytics is centred upon formal causation, understood as a demonstration in terms of essence (and as innocent of the distinction between form and matter). While Aristotle says that all four causes can be signified by the middle term in a demonstrative syllogism, and he discusses at some length efficient causation, much of Aristotle’s discussion is foremost concerned with the formal cause. Further, I show that Aristotle had very detailed (...) procedures for identifying the formal cause, and that he is aware of several problems which might lead one to erroneously identify the wrong form as the cause of a property. Finally, I show that Aristotle’s account can easily be adapted to material causation, and through some modifications (introduction of process universals related through parthood), hinted at in II 11-12 and 16-17, to efficient and final causation. (shrink)

On a purely epistemic understanding of experimental realism, manipulation affords a particularly robust kind of causal warrant, which is – like any other warrant – defeasible. I defend a version of Nancy Cartwright’s inference to the most likely cause, and I conclude that this minimally epistemic version of experimental realism is a coherent, adequate and plausible epistemology for science.

The essence of artefacts is typically taken to be their function: they are defined in terms of the goals or aims of the artisans that make them. In this paper, an alternative theory is proposed tha...

I defend the theory that one's life is meaningful to the extent that one promotes the good. Call this the good cause account (GCA) of the meaning of life. It holds that the good effects that count towards the meaning of one's life need not be intentional. Nor must one be aware of the effects. Nor does it matter whether the same good would have resulted if one had not existed. What matters is that one is causally responsible for (...) the good. I argue that the best theory of the meaning of life should clearly distinguish between subjective fulfillment and objective meaningfulness. The GCA respects the distinction. And it is superior to its leading rivals in the recent literature, most notably those of Erik Wielenberg and Susan Wolf. (shrink)

In the ongoing pandemic, death statistics influence people’s feelings and government policy. But when does COVID-19 qualify as the cause of death? As philosophers of medicine interested in conceptual clarification, we address the question by analyzing the World Health Organization’s rules for the certification of death. We show that for COVID-19, WHO rules take into account both facts and values.

Medieval Modal Logic & Science uses modal reasoning in a new way to fortify the relationships between science, ethics, and politics. Robert C. Trundle accomplishes this by analyzing the role of modal logic in the work of St. Augustine and St. Thomas Aquinas, then applying these themes to contemporary issues. He incorporates Augustine's ideas involving thought and consciousness, and Aquinas's reasoning to a First Cause. The author also deals with Augustine's ties to Aristotelian modalities of thought regarding science and (...) logic, reassessing the commonly held belief in Augustine's Platonism to not be a mistake as much as a simplistic view of his philosophy. Trundle links contemporary issues in epistemology, morality, theology, and logic, making several useful connections between ancient and medieval studies in modal logic and modern concerns. These applications of modal theory illuminate many puzzles in the works of Heidegger, Wittgenstein, Whitehead, and Kuhn. (shrink)

The Common Cause Principle, stating that correlations are either consequences of a direct causal link between the correlated events or are due to a common cause, is assessed from the perspective of its viability and it is argued that at present we do not have strictly empirical evidence that could be interpreted as disconfirming the principle. In particular it is not known whether spacelike correlations predicted by quantum field theory can be explained by properly localized common causes, and (...) EPR correlations are known to be unexplainable only by common causes that are required to satisfy conditions that are empirically not tested. (shrink)

According to informal logic, the possibilities of deductive logic as a tool for analysing and evaluating ordinary arguments are very limited. While I agree with this claim in general, I question it in the case of the argument from cause to effect. In this paper I first show, on the basis of carefully chosen examples, that we usually react differently to falsification of the conclusion of the argument from cause to effect than we do to the falsification of (...) the conclusion of other defeasible arguments. I then identify general conditions and assumptions under which the causal argument from cause to effect can be reconstructed as deductive. Finally, I compare the causal argument with the expert argument, which is a typical example of a defeasible argument in the narrower sense. (shrink)

Is the traditional understanding of cause and effect in aetiology so certain that Arthur Eddington therefore proposed in 1927 "the arrow of time, or time's arrow" involving "the 'one-way direction' or 'asymmetry' of time", such that "a cause precedes its effect: the causal event occurs before the event it affects. Thus causality is intimately bound up with time's arrow"? (WK 2014) This certain view on cause and effect can be contrasted with an opposing view by Michael Dummett, (...) who suggested instead, back in 1957, that "there was no philosophical objection to effects preceding their causes", or what is now known as "retrocausality". (WK 2014a) Contrary to these opposing views (and other ones as will be discussed in the book), aetiology (in relation to cause and effect) are neither possible (or impossible) nor desirable (or undesirable) to the extent that the respective ideologues (on different sides) would like us to believe. Of course, this questioning of different opposing views on cause and effect does not mean that the study of aetiology is useless, or that those diverse fields (related to aetiology) -- like physics, engineering, biology, philosophy, medicine, epidemiology, government, geography, spatial analysis, psychology, statistics, mathematics, economics, management, history, law, sociology, theology, and so on -- are worthless. (WK 2014b & 2014c) In fact, neither of these extreme views is plausible. Rather, this book offers an alternative (better) way to understand the future of aetiology in regard to the dialectic relationship between cause and effect -- while learning from different approaches in the literature but without favouring any one of them (nor integrating them, since they are not necessarily compatible with each other). More specifically, this book offers a new theory (that is, the pluralist theory of aetiology) to go beyond the existing approaches in a novel way, and is organised in four chapters. (shrink)

Annotation A central piece of Suarez's (1584-1617) metaphysics, which is considered important because it was not a commentary on Aristotle, and was used in universities and by both his fellow Jesuits and Protestant scholars and theologians for centuries. He deals with the formal principles of the nature of material substances, that is, their substantial form, which is central to his interpretation of Aristotelian realism. Annotation c. Book News, Inc., Portland, OR (booknews.com).

"The French philosopher Nicolas Malebranche popularized the doctrine of occasionalism in the late seventeenth century. Occasionalism is the thesis that God alone is the true cause of everything that happens in the world, and created substances are merely "occasional causes." This doctrine was originally developed in medieval Islamic theology, and was widely rejected in the works of Christian authors in medieval Europe. Yet despite its heterodoxy, occasionalism was revived starting in the 1660s by French and Dutch followers of the (...) philosophy of René Descartes. Since the 1970s, there has been a growing body of literature on Malebranche and occasionalism. There has also been new work on the Cartesian occasionalists before Malebranche - including Arnold Geulincx, Geraud de Cordemoy and Louis de la Forge. But to date there has not been a systematic, book-length study of the reasoning that led Cartesian thinkers to adopt occasionalism, and the relationship of their arguments to Descartes' own views. This book expands on recent scholarship, to provide the first comprehensive account of seventeenth century occasionalism. Part I contrasts occasionalism with a theory of divine providence developed by Thomas Aquinas, in response to medieval occasionalists; it shows that Descartes' philosophy is compatible with Aquinas' theory, on which God "concurs" in all the actions of created beings. Part 2 reconstructs the arguments of Cartesians - such as Cordemoy and a Forge - who used Cartesian physics to argue for occasionalism. Finally, it shows how Malebranche's case for occasionalism combines philosophical theology with Cartesian metaphysics and mechanistic science"--. (shrink)

This paper focuses on Galen’s views about the formal cause against the wider background of his account of causation. In his works on the pulse, Galen provides an in-depth discussion of issues such as the theory of causes and the problem of definition. While Galen is inclined to incorporate Peripatetic doctrines and vocabulary, he neglects Aristotle’s formal cause both in his account of causes and in that of definition. Further parallels outside the corpus on the pulse confirm Galen’s (...) reserved attitude towards the (Peripatetic) formal cause. In his work That the Faculties of the Soul Follow the Mixtures of the Body, however, Galen refers favourably to the Peripatetic theory of hylomorphic form. More precisely, Galen equates the Peripatetic en-mattered form with the mixture of homoeomerous bodies (the ratio or proportion of the elementary qualities in them). Here I will attempt to provide an explanation of Galen’s mixed attitude towards the formal cause and I will argue that his general position is consistent after all. In addition to this, I will try to set Galen’s position against the background of the Peripatetic debates on the status of form. (shrink)

We prove new results on common cause closedness of quantum probability spaces, where by a quantum probability space is meant the projection lattice of a non-commutative von Neumann algebra together with a countably additive probability measure on the lattice. Common cause closedness is the feature that for every correlation between a pair of commuting projections there exists in the lattice a third projection commuting with both of the correlated projections and which is a Reichenbachian common cause of (...) the correlation. The main result we prove is that a quantum probability space is common cause closed if and only if it has at most one measure theoretic atom. This result improves earlier ones published in [1]. The result is discussed from the perspective of status of the Common Cause Principle. Open problems on common cause closedness of general probability spaces (L, ϕ) are formulated, where L is an orthomodular bounded lattice and ϕ is a probability measure on L. (shrink)

This paper considers Davidson's critique, in his paper 'Causal Relations' of the Millian notion of the 'whole cause' of an event. The paper attempts to show why Davidson's criticisms of Mill, taken to its logical conclusion, entails that we must give up 'the network model of causation', a model which dominates contemporary philosophy of mind (as well as many accounts of the nature of causation in general) and shapes prevailing ideas about the form of some of its most important (...) questions. (shrink)

The Principle of the Common Cause is usually understood to provide causal explanations for probabilistic correlations obtaining between causally unrelated events. In this study, an extended interpretation of the principle is proposed, according to which common causes should be invoked to explain positive correlations whose values depart from the ones that one would expect to obtain in accordance to her probabilistic expectations. In addition, a probabilistic model for common causes is tailored which satisfies the generalized version of the principle, (...) at the same time including the standard conjunctive-fork model as a special case. (shrink)

With the high frequency and intensity of worldwide disasters, cause-related marketing campaigns with sudden disasters are becoming increasingly popular. However, little is known about whether and how cause acuteness may influence consumer attitudes. This research aims to extend this research area through investigating the relationship between cause acuteness and consumer attitudes toward the product, as well as its underlying mechanism and boundary conditions. Based on a moral psychology perspective, we propose a theoretical model focusing on the mediating (...) role of moral elevation in influencing consumer attitudes. This model also incorporates product-cause fit and information transparency as moderators underpinning necessary conditions that are likely to lead to positive consumer attitudes. Four empirical studies were conducted to test our model. Our research results reveal that consumers have more positive attitudes toward the product associated with a sudden disaster than with an ongoing tragedy. Furthermore, the positive effect of cause acuteness on consumer attitudes is mediated by enhanced moral elevation, which occurs under the conditions of high product-cause fit and high information transparency. (shrink)

A great deal has been written over the past decade defending ‘higher-level’ causes by arguing that overdetermination is more complex than many philosophers initially thought. Although two shooters overdetermine the death of a firing squad victim, a baseball and its parts do not overdetermine the breaking of a window. But while these analyses of overdetermination have no doubt been fruitful, the focus on overdetermination—while ignoring other varieties of causal relation—has limited the discussion. Many of the cases of interest resemble joint (...) causes or a cause necessitating a simultaneous epiphenomenon as much as they resemble overdeterminers. If we are to fully understand higher-level causation, we need to distinguish it from these causal relations as well. This paper is dedicated to the task, focusing especially on the ‘threat’ that higher-level causes are epiphenomena necessitated by lower-level causes. (shrink)

My Ph.D. dissertation written under the supervision of Prof. Tomasz Placek at the Institute of Philosophy of the Jagiellonian University in Kraków. In one of its most basic and informal shapes, the principle of the common cause states that any surprising correlation between two factors which are believed not to directly influence one another is due to their common cause. Here we will be concerned with a version od this idea which possesses a purely probabilistic formulation. It was (...) introduced, in the form of a general principle, by Hans Reichenbach in his posthumously published book "The Direction of Time". The central notion of the principle in Reichenbach's formulation, and of the current essay, is that of screening off: two correlated events are screened off by a third event if conditioning on the third event makes them probabilistically independent. Reichenbach's principle marks also the beginning of a new field of philosophy: namely, that of ``probabilistic causality''. For the most part, the current essay can be seen as an effort at checking how far one can go with the purely statistical notions revolving around Reichenbach's idea of common cause. In short, the answer is ``surprisingly far''; in some classes of probability spaces all correlations between ``interesting'' events possess explanations of such sort. However, this fact lends itself to opposing interpretations; more on that in the conclusion. Chapters 6 and 7 contain mathematical results concerning these issues. The screening-off condition requires an equality of a probabilistic nature to hold; chapter 8 is a short discussion of slightly weakened versions of the condition, which hold if the sides of the above mentioned equality differ to a small degree. In chapter 2, after some mathematical preliminaries, we study the various formulations of the principle which might be said to stem from the original idea of Reichenbach. We also examine a few of the most salient counterarguments, which undermine at least some of the formulations. Chapter 3 is of a formal nature, dealing with various probabilistic notions which can be thought of as generalizations of Reichenbach's concept of common cause. The next chapter concerns the relationship between the idea of common causal explanation and the Bell inequalities. In chapter 5 we briefly present the form of Reichenbach's principle which can be found in the field of representing causal structures by means of directed acyclic graphs. (shrink)