Nash-equilibria in a heterogeneous oligopoly with fuzzy information

We consider a model of an oligopolistic market with heterogeneous firms and products where neither the cost nor the demand functions are common knowledge. Instead, each firm only has some vague ideas about the price strategies adopted by its competitors which is modelled by a fuzzy set. In analogy to the notion of an "equilibrium of actions and beliefs" we define and characterize a generalized Nash-equilibrium and show its existence under general conditions. Furthermore, the impact of the fuzzy information on the equilibrium outcome is analyzed by means of a comparative static analysis within a particular model framework.Received: 28 May 2002, Accepted: 25 December 2002, JEL Classification: D43, D80, L13We wish to thank Bernhard F. Arnold, the editor Murat Sertel , and two anonymous referees for helpful comments. Of course, we are responsible for all remaining errors.     

Outsourcing and trade in a spatial world

This paper provides an analysis of outsourcing and trade in a spatial model à la Hotelling. In this setting, we discuss the trade-off between transport-cost-related disadvantages and outsourcing-related production cost advantages of a large economy and we investigate how the existence of national transport costs influences both the structure of industrial production and the pattern of final goods trade. In addition, the model gives a rich picture of the possible welfare effects of trade liberalization. In particular, we show that a final goods exporting country definitely gains from economic integration, while a final goods importing country may lose. Finally, when lowering domestic outsourcing activities, trade liberalization may reduce world welfare, even if pro-competitive effects lead to a decline in consumer prices.     

Strategic profiles and performance: An empirical test of select key propositions

Competing theories on internal orientation versus external orientation are examined. The relevant theories are amalgamated and condensed into a number of competing propositions that are empirically tested. The findings suggest that the internally oriented businesses as well as the externally oriented businesses underperform the efficient, marketing oriented businesses.     

Killing off cohorts: Forecasting mortality of non-extinct cohorts with the penalized composite link model

Mortality forecasting has crucial implications for insurance and pension policies. A large amount of literature has proposed models to forecast mortality using cross-sectional (period) data instead of longitudinal (cohort) data. As a consequence, decisions are generally based on period life tables and summary measures such as period life expectancy, which reflect hypothetical mortality rather than the mortality actually experienced by a cohort. This study introduces a novel method to forecast cohort mortality and the cohort life expectancy of non-extinct cohorts. The intent is to complete the mortality profile of cohorts born up to 1960. The proposed method is based on the penalized composite link model for ungrouping data. The performance of the method is investigated using cohort mortality data retrieved from the Human Mortality Database for England & Wales, Sweden, and Switzerland for male and female populations.     

Correction to: Earnings announcement return extrapolation

Review of Accounting Studies - A Correction to this paper has been published: https://doi.org/10.1007/s11142-021-09605-9     

Poverty in Palanpur

The meaning and identification of poverty are examined usingthree indicators of standard of living in the North Indian villageof Palanpur. The first is intended as a measure of "apparentprosperity" based on the personal assessments of investigatorsafter intensive field work in the village over the full agriculturalyear 1983–84. The other two are income in 1983–84,and a measure of permanent income obtained by averaging incomesfrom four surveys conducted over a twenty-six-year interval.A comparison of these three indicators shows that income measuredin any one year may give a misleading impression of the incidenceof poverty. The risk of poverty for households is calculated.Vulnerability is high among low-caste households and those whichare involved in agricultural labor. Categories, however, arenot homogeneous; for example, whereas the landless and widowsare more likely to be poor, some of such households are quitewell off. It is argued that poverty in a good agricultural yearis a better indicator of sustained poverty than poverty in abad year. Occupational mobility out of agricultural labor islow, and changes in the distribution of land are largely accountedfor by demographic processes such as household splits.     

A BUREAUCRAT'S PROCUREMENT STRATEGY: BUDGET CONSTRAINTS AND RATIONING

ABSTRACT ** :  We investigate a bureaucratic principal responsible for the procurement of goods and services from private agents. The bureaucrat is evaluated on output and controlled by a limited budget. The agents maximize profit, have private information about variable production costs, and have positive outside options which are lost upon acceptance of a procurement contract. The setting is relevant for, e.g. governmental agencies. We show how this setup makes probabilistic rationing and overproduction for low-cost agents a useful tool for the bureaucrat.     

The New Comparative Political Economy

With the collapse of communism in the late 1980s the field of comparative political economy has undergone major revision. Socialism is no longer considered the viable alternative to capitalism it once was. We now recognize that the choice is between alternative institutional arrangements of capitalism. Progress in the field of comparative political economy is achieved by examining how different legal, political and social institutions shape economic behavior and impact economic performance. In this paper we survey the new learning in comparative political economy and suggest how this learning should redirect our attention in economic development.JEL classification: B53, O10, O20, P0     

Characterizing Pareto Improvements in an Interdependent Demand System

Interdependent preferences generally imply Pareto inefficiency. For a general demand system, we provide a characterization of Pareto improvements. For a prominent parametric specification, the Linear Expenditure System, we characterize in detail the welfare loss associated with interdependent preferences. Using an estimated empirical model of this kind, we calculate the compensating variation corresponding to the welfare loss.