How revealing is revealed preference?

This lecture address the following two key criticisms of the empirical application of revealed preference theory: When the RP conditions do not reject, they do not provide precise predictions; and when they do reject, they do not help characterize the nature of irrationality or the degree/direction of changing tastes. Recent developments in the application of RP theory are shown to have rendered these criticisms unfounded. A powerful test of rationality is available that also provides a natural characterization of changing tastes. Tight bounds on demand responses and on the welfare costs of relative price and tax changes are also available and are shown to work well in practice

Entrepreneurial culture, occupational choice and tax policy

This paper studies the influence of entrepreneurial culture among social groups in an economy. The cultural factor determines their occupational preferences. We develop a model in which a concentration factor has been used as a measure of business culture determining the occupational choice patterns of otherwise identical social groups. The occupational distribution of individuals from different groups is obtained by comparing expected utilities from employment and entrepreneurship. Based on the labor market outcomes the mean income and income variance of different groups is calculated. Individuals from groups with greater cultural traits display higher relative risk aversion with a high income variance compared to other groups. We propose a tax- subsidy policy and obtain conditions for maximizing social utility.Entrepreneurial culture, Self-employment, Risk aversion, Income variance, National Income, Tax-subsidy Policy

Information Prioritization: A Comparison Between Utility Maximizers and Probability Matchers

This thesis examines the differences between probability matchers and utility maximizers in their preferences for information sources in a lab environment. In this paper, we consider the best source of information to be the most connected one. We conducted several linear probability model type regressions along with logit regressions. Furthermore, we also attempted to control and fix any potential misclassifications in classifying the cognitive strategy by using instrumental variables. The results show that utility maximizers will almost always choose the most informed node. Probability matchers, on the other hand, do not exhibit such a behavior as the probability matching strategy shows that there is no difference between probability matchers and non-utility maximizers. Furthermore, we find that even if we control for the type of network in which the experiment is held, there is still no difference between the behavior of probability matchers and non-utility maximizers whereas the behavior of utility maximizers shows that they will always choose the most connected node

Home bias in financial markets: robust satisficing with info gaps

The observed patterns of equity portfolio allocation around the world are at odds with predictions from a capital asset pricing model (CAPM). What has come to be called the “home-bias” phenomenon is that investors tend to hold a disproportionately large share of their equity portfolio in home country stocks as compared with predictions of the CAPM. This paper provides an explanation of the home-bias phenomenon based on information-gap decision theory. The decision concept that is used here is that profit is satisficed and robustness to uncertainty is maximized rather than expected profit being maximized. Furthermore, uncertainty is modeled nonprobabilistically with info-gap models of uncertainty, which can be viewed as a possible quantification of Knightian uncertainty.

IT Outsourcing Risk Management at British Petroleum

This paper reports the results of a study of three successive IT outsourcing contracts at British Petroleum (BP). We offer an operational definition of IT outsourcing risk and use it to assess the risk exposure associated with each contract. We then examine how the management at BP dealt with outsourcing risk. Our results show that careful and deliberate risk management can substantially attenuate the level of risk exposure, and that IT outsourcing risks can be managed. Ce document présente les résultats d'une étude de trois contrats d'impartition successifs. L'étude fut conduite chez British Petroleum. Une définition opérationnelle du risque d'impartition est donnée. Cette définition est ensuite utilisée pour déterminer le niveau de risque associé à chacun des contrats. Les mécanismes de gestion de risque sont également identifiés. Les résultats démontrent qu'une gestion active du risque permet de réduire sensiblement les niveau d'exposition au risque, notamment dans le cas de contrats d'impartition des technologies de l'information.Outsourcing of IS, IS risk management, agency theory, transaction cost economics, case study, Impartition des systèmes informatiques, gestion du risque d'impartition, gestion du risque, théories de l'agence et des coûts de transaction, étude de cas

Best Nonparametric Bounds on Demand Responses

This paper uses revealed preference inequalities to provide tight nonparametric bounds on consumer responses to price changes. Price responses are allowed to vary nonparametrically across the income distribution by exploiting micro data on consumer expenditures and incomes over a finite set of discrete relative price changes. This is achieved by combining the theory of revealed preference with the semiparametric estimation of consumer expansion paths (Engel curves). We label these expansion path based bounds as E-bounds. Deviations from revealed preference restrictions are measured by preference perturbations which are shown to usefully characterise taste change.demand responses; relative prices; revealed preference; semiparametric regression; changing tastes

Best nonparametric bounds on demand responses

This paper uses revealed preference inequalities to provide tight nonparametric bounds on consumer responses to price changes. Price responses are allowed to vary nonparametrically across the income distribution by exploiting microdata on consumer expenditures and incomes over a finite set of discrete relative price changes. This is achieved by combining the theory of revealed preference with the semiparametric estimation of consumer expansion paths (Engel curves). We label these expansion path based bounds as E-bounds. Deviations from revealed preference restrictions aremeasured by preference perturbations which are shown to usefully characterise taste change.Demand responses, relative prices, revealed preference, semiparametric regression, changing tastes

Assets and Financial Management Among Poor Households in Extreme Poverty Neighborhoods

Proposals supporting the accumulation of assets in poor households are hopeful of creating upward mobility. The experiences of poor families in managing assets and other elements of daily economic life were explored through interviews with low-income Hispanic and Anglo families. All families exhibited planning and management skills needed for assets accumulation, but were unable to escape the effects of unrewarding neighborhood environments. Assets did not provide clear avenues out of poverty. If assets-based programs are to raise the economic status of poor families in extreme poverty neighborhoods they must include mechanisms to protect value and reduce uncertainty