An Experimental Study of Conventions and Norms

Although it is now recognized that norms play an important role in many economic decisions, compliance with conventions is generally considered to be driven by rational self-interest only. We report instead experimental data showing that (1) ‘external’ norms of fairness sustain social conventions that have emerged from repeated play of simple coordination games; and (2) with repetition such conventions acquire an ‘intrinsic’ normative power of their own. This creates pressure towards conformity, and patterns of regular behaviour that are far stronger and more stable than those that would be generated by mere self-interest and rationality.

Costless Discrimination and Unequal Achievements in a Labour Market Experiment

We investigate the emergence of discrimination in an experiment where individuals affiliated to different groups compete for a monetary prize, submitting independent bids to an auctioneer. The auctioneer receives perfect information about the bids (i.e. there is no statistical discrimination), and she has no monetary incentive to favour the members of her own group (the bidders are symmetric). We observe nonetheless some discrimination by auctioneers, who tend to assign the prize more frequently to a member of their own group when two or more players put forward the highest bid. Out-group bidders react to this bias and reduce significantly their bids, causing an average decay of their earnings throughout the game, with cumulative effects that generate strongly unequal outcomes. Because the initial bias is costless, such mechanism can survive even in competitive market, providing a rationale for a well-known puzzle in the literature, i.e. the long-run persistence of discrimination.discrimination, tournament, groups, experiment

The Nature and Significance of Social Ontology

We propose a bridge-builder perspective on social ontology. Our point of departure is that an important task of philosophy is to provide the bigger picture. To this end, it should investigate folk views and determine whether and how they can be preserved once scrutinized from the perspective of the sciences. However, the sciences typically present us with a fragmented picture of reality. Thus, an important intermediate step is to integrate the most promising social scientific theories with one another. In addition to this, social ontology can provide input to and benefit from other philosophical disciplines that engage in normative theorizing. Thus, we propose that social ontology connects not only with folk ontology and scientific ontology but also with fields such as ethics and political philosophy. Building bridges between them serves to formulate a credible and encompassing worldview that is of theoretical and practical significance

The Nature and Significance of Social Ontology

We propose a bridge-builder perspective on social ontology. Our point of departure is that an important task of philosophy is to provide the bigger picture. To this end, it should investigate folk views and determine whether and how they can be preserved once scrutinized from the perspective of the sciences. However, the sciences typically present us with a fragmented picture of reality. Thus, an important intermediate step is to integrate the most promising social scientific theories with one another. In addition to this, social ontology can provide input to and benefit from other philosophical disciplines that engage in normative theorizing. Thus, we propose that social ontology connects not only with folk ontology and scientific ontology but also with fields such as ethics and political philosophy. Building bridges between them serves to formulate a credible and encompassing worldview that is of theoretical and practical significance

The Nature and Significance of Social Ontology

We propose a bridge-builder perspective on social ontology. Our point of departure is that an important task of philosophy is to provide the bigger picture. To this end, it should investigate folk views and determine whether and how they can be preserved once scrutinized from the perspective of the sciences. However, the sciences typically present us with a fragmented picture of reality. Thus, an important intermediate step is to integrate the most promising social scientific theories with one another. In addition to this, social ontology can provide input to and benefit from other philosophical disciplines that engage in normative theorizing. Thus, we propose that social ontology connects not only with folk ontology and scientific ontology but also with fields such as ethics and political philosophy. Building bridges between them serves to formulate a credible and encompassing worldview that is of theoretical and practical significance

The Nature and Significance of Social Ontology

We propose a bridge-builder perspective on social ontology. Our point of departure is that an important task of philosophy is to provide the bigger picture. To this end, it should investigate folk views and determine whether and how they can be preserved once scrutinized from the perspective of the sciences. However, the sciences typically present us with a fragmented picture of reality. Thus, an important intermediate step is to integrate the most promising social scientific theories with one another. In addition to this, social ontology can provide input to and benefit from other philosophical disciplines that engage in normative theorizing. Thus, we propose that social ontology connects not only with folk ontology and scientific ontology but also with fields such as ethics and political philosophy. Building bridges between them serves to formulate a credible and encompassing worldview that is of theoretical and practical significance

Economics and the laboratory: some philosophical and methodological problems facing experimental economics

Laboratory experimentation was once considered impossible or irrelevant in economics. Recently, however, economic science has gone through a real ‘laboratory revolution’, and experimental economics is now a most lively subfield of the discipline. The methodological advantages and disadvantages of controlled experimentation constitute the main subject of this thesis. After a survey of the literature on experiments in philosophy and economics (chapter one), the problem of testing normative theories of rationality is tackled (chapter two). This philosophical issue was at the centre of a famous controversy in decision theory (the ‘Allais controversy’), during which a methodology of normative falsification was first articulated and used to assess experimental results. In the third chapter, the methodological advantages of controlled experimentation are illustrated and discussed with examples taken from the experiments on the so-called ‘preference reversal’ phenomenon. Laboratory testing allows to establish with a high degree of certainty that certain phenomena lie behind the experimental data, by means of independent testing, elimination of alternative hypotheses, and the use of different instruments of observation. The fourth chapter is devoted to a conceptual analysis of the problem of ‘parallelism’. This is the problem of inferring from the occurrence of a phenomenon in the laboratory, to its (possible) instantiation also in non-laboratory environments. Experimental economists have discussed parallelism at length, and their views are presented and criticised. Eventually, it is argued that parallelism is a factual matter and as such can only be established on empirical grounds. The fifth chapter provides an example of how one can argue for parallelism, focusing on the case of experimentation on the ‘winner’s curse’ phenomenon. The role of experiments as ‘mediators’ between theoretical models and their target domain of application is illustrated, and the structure of parallelism arguments analysed in detail. Finally, in the last chapter, economic experiments are compared to simulations, in order to highlight their specific characteristics