Online research in philosophy

The theory of Markov decision processes (MDP) can be used to analyze a wide variety of stopping time problems in economics. In this paper, the nature of such problems is discussed and then the underlying theory is applied to the question of arranged marriages. We construct a stylized model of arranged marriages and, inter alia, it is shown that a decision maker's optimal policy depends only on the nature of the current marriage proposal, independent of whether there is recall (storage) of previous marriage proposals.

In recent years, the stakeholder approach has been widely applied in the debate on corporate social responsibility (CSR). Although many authors of this approach have reviewed many elements of the model, they have unconditionally accepted several criteria assumed by Freeman ( 1984 ) to identify stakeholders. In general, stakeholder authors have assumed that (a) the company establishes dyadic relationships with other agents, and (b) decisions made by a company only have foreseen and direct effects on other agents. These criteria have enabled researchers to understand simple processes. However, they have also prevented researchers from explaining how action comes about, and how responsibility is shared, in many complex processes taking place in contemporary societies. Such complex processes involve many agents, and each decision can generate unexpected effects which accumulate or disseminate. Furthermore, the normative structure governing these processes can affect and/or be affected by the actions of agents. In this study, we propose new criteria to expand the stakeholder model and facilitate the study of CSR in such processes.

This paper responds to continuing commentary on Velmans (2002a) “How could conscious experiences affect brains,” a target article for a special issue of JCS. I focus on the final question dealt with by the target article: how free will relates to preconscious and conscious mental processing, and I develop the case for preconscious free will. Although “preconscious free will” might appear to be a contradiction in terms, it is consistent with the scientific evidence and provides a parsimonious way to reconcile the commonsense view that voluntary acts are freely chosen with the evidence that conscious wishes and decisions are determined by preconscious processing in the mind/brain. I consider alternative interpretations of how “conscious free will” might operate by Libet and by Mangan and respond to doubts about the extent to which the operations of mind are revealed in consciousness, raised by Claxton and Bouratinos. In reconciling commonsense attributions of freedom and responsibility with the findings of science, preconscious free will can be shown to have practical consequences for adjudications in law.

This paper develops an incomplete information model of extended deterrence relationships. It postulates players who are fully informed about the costs of war and all other relevant variables, save for the values their opponents place on the issues at stake, i.e., the pawn. We provide consistent and intuitively satisfying parallel definitions for two types of players, Hard and Soft, in terms of the parameters of our model. We also answer several particular questions about the strategy choices of players in an extended deterrence relationship and, by identifying all the Perfect Bayesian Equilibria of the game model we construct, specify typical behavior patterns.Our most general finding is that an Extended Deterrence Game always has a unique Perfect Bayesian Equilibrium with a rather simple form. A challenger initiates for certain if the pawn is valuable enough to it and never challenges otherwise, Likewise, a defender always resists if the pawn is valuable enough and never resists otherwise.

A model of when and where saccades are made necessarily incorporates a model of the “When” and “Where” of target selection. We suggest that the framework proposed by Findlay & Walker does not specify sufficiently how (and by what means) selection processes contribute to the spatial and temporal determinants of saccade generation. Examples from across-trial priming in visual search and from the inhibition of temporally segmented distractors show linkage between the processes involved in computing when and where selection operates, so that there is cooperation rather than competition between so-called Where and When pathways. Aspects of spatial selection may also determine the remote distractor effect on saccades. The detailed relations between the processes involved in selection and saccade generation may be best understood in relation to detailed computational accounts of the processes.

This paper presents a sequential search model where consumers look for several products and multiproduct …rms compete in prices. In such a multiproduct search market, both consumer behavior and …rm behavior exhibit di¤erent features from the single-product case: a consumer often returns to previously visited …rms before running out of options; and prices can decrease with search costs and increase with the number of …rms. The framework is then extended in two directions. First, by introducing both single-product and multiproduct searchers, the model can explain the phenomenon of countercyclical pricing, i.e., prices of many retail products decline during peak-demand periods. Second, by allowing …rms to use bundling strategies, the model sheds new light on how bundling a¤ects market performance. In a search environment, bundling tends to reduce consumer search intensity, which can soften competition and reverse the usual welfare assessment of competitive bundling in a perfect information setting.

It is shown that complex adaptations are best modelled as discrete processes represented on directed weighted graphs. Such a representation captures the idea that problems of adaptation in evolutionary biology are problems in a discrete space, something that the conventional representations using continuous adaptive landscapes does not. Further, this representation allows the utilization of well-known algorithms for the computation of several biologically interesting results such as the accessibility of one allele from another by a specified number of point mutations, the accessibility of alleles at a local maximum of fitness, the accessibility of the allele with the globally maximum fitness, etc. A reduction of a model due to Kauffman and Levin to such a representation is explicitly carried out and it is shown how this reduction clarifies the biological questions that are of interest.

Extended cognition is the view that some cognitive processes extend beyond the brain. One prominent strategy of arguing against extended cognition is to offer necessary conditions on cognition and argue that the proposed extended processes fail to satisfy these conditions (Adams and Aizawa, 2008; Rupert, 2010; Weiskopf, 2008). I argue that this strategy is misguided and fails to refute extended cognition. I suggest a better way to evaluate the case for extended cognition that should be acceptable to all parties, captures the intuitiveness of previous objections, and avoids the problems with the strategy of offering necessary conditions on cognition. I conclude that extended cognition theorists have failed to establish the truth of extended cognition.

We prove strong completeness of the □-version and the ◊-version of a Gödel modal logic based on Kripke models where propositions at each world and the accessibility relation are both infinitely valued in the standard Gödel algebra [0,1]. Some asymmetries are revealed: validity in the first logic is reducible to the class of frames having two-valued accessibility relation and this logic does not enjoy the finite model property, while validity in the second logic requires truly fuzzy accessibility relations and this logic has the finite model property. Analogues of the classical modal systems D, T, S4 and S5 are considered also, and the completeness results are extended to languages enriched with a discrete well ordered set of truth constants.

Many skeptics throughout the centuries have accused the New Testament characterization of the incarnation as being incoherent. The reason is that it appears impossible that any person can exemplify human properties such as ignorance, fatigability, and spatial limitation, as the New Testament testifies of Jesus, while possessing divine properties such as omniscience, omnipotence, and omnipresence at the same time. This paper proposes a possible model which asserts that at the incarnation, the Logo's mind was divided into conscious and preconscious, and the divine properties were transferred from the conscious into the preconscious, which became part A of Jesus' preconscious. Simultaneously, the conscious acquired newly created human properties, while a human preconscious which would become part B of Jesus' preconscious and a human body were also created. It is demonstrated that this model does not suffer from the problems that beset other models such as Apollinarianism, two-consciousness Christology, and ontological Kenoticism, and that based on this model the full attributes of divinity and humanity of Jesus as testified by the Scriptures could have simultaneously coexisted in one person without contradiction.