Publications des institutions partenaires
Duration dependence and dispersion in count - data models
This paper explores the relation between non-exponential waiting times between events and the distribution of the number of events in a fixed time interval. It is shown that within this framework the frequently observed phenomenon of overdispersion, i.e. a variance that exceeds the mean, is caused by a decreasing hazard function of the waiting times, while an increasing hazard...
Institution partenaire
English / 01/01/1995
Product and process flexibility in an innovative environment
This article studies several attributes of a firm's long-run decisions about organizational structure, attributes that affect the firm's short-run innovative activity. We focus on flexibility, which lowers the future costs of implementing innovations, and research capabilities, which improve the future opportunities for innovation. We consider two dimensions of innovation:...
Institution partenaire
English / 01/01/1995
On the effects of price or quality. Regulations in a Monopoly market
Institution partenaire
English / 01/01/1995
An Engelian model of growth and innovation with hierarchic consumer demand and unequal incomes
The paper develops an endogenous growth model which is based on lexicographical consumer preferences. The central variable determining the long-run rate of growth is personal income distribution. Its role in the process of growth depends crucially on the assumption about productivity growth. If productivity grows proportionally to product diversity, then an unequal distribution of...
Institution partenaire
English / 01/06/1994
Count data models for demographic data.
Key demographic variables, such as the number of children and the number of marriages or divorces, can only take integer values. This papers deals with the estimation of single equation models in which the counts are regressed on a set of observed individual characteristics such as age, gender, or nationality. Most empirical work in population economics has neglected the fact that...
Institution partenaire
English / 01/02/1994
The private provision of public goods when the relative size of contributions matters
Institution partenaire
English / 01/01/1994
Two aspects of labor mobility: a bivariate Poisson regression approach
The study introduces a distinction between two types of labor mobility: direct job to job changes (which are assumed to be voluntary) and job changes after experiencing an unemployment spell (assumed to be involuntary). Exploiting the close relationship between those two phenomena we adopt a bivariate regression framework for our empirical analysis of data on male individuals in the...
Institution partenaire
English / 01/01/1993
The impact of quality and reliability on demand
Institution partenaire
English / 01/01/1993
Die Wahrscheinlichkeit paradoxer Abstimmungsergebnisse
Abstimmungen als Mittel zur Entscheidungsfindung sind heute sehr verbreitet. Dass Abstimmungsergebnisse (aus logisch zwingenden Gründen) nicht in jedem Fall rational sein müssen, ist hingegen wenig bekannt. Die vorliegende Arbeit zeigt an Hand theoretischer Berechnungen und praktischer Fallbeispiele aus der schweizerischen Politik, dass irrationale, sogenannt paradoxe Entscheide...
Institution partenaire
Deutsch / 01/01/1993
Towards a quality-centered economic analysis: Some simple diagrams
Institution partenaire
English / 01/12/1992
Homo Oeconomicus Sapiens. Versuche zu einer "modernen" Volkswirtschaftslehre
Institution partenaire
Deutsch / 01/01/1992
On optimal public good provision with tax evasion
It is proved that for public goods with zero income effects (also called Ziff public goods) tax evasion does not affect the optimal level of public expenditure. Further examples show that, in general, tax evasion may lead to less but also to more public expenditure.
Institution partenaire
English / 01/06/1991
A new approach for modeling economic count data
A new parametric model for the econometric analysis of non-negative integers is proposed. Its distinguishing feature is that it allows for more flexible variance-mean relationships than the models used hitherto. Estimation with maximum likelihood is illustrated using a dataset on ship damage incidents.
Institution partenaire
English / 01/01/1991
Separating small and big fish: The case of income tax evasion
This paper proposes to offer the taxpayer a choice of tax-enforcement schemes for self-selection. More specifically, the taxpayer should have the possibility of opting for the prevailing regime with a certain penalty on the evaded tax or for an alternative regime with a higher penalty on the evaded tax but a reduced tax rate. It is shown that this leads to a separation of taxpayers...
Institution partenaire
English / 01/01/1991
Rewards Versus Penalties: on a New Policy against Tax Evasion
The theoretical analysis of tax evasion has typically concentrated on the role of Abstract penalties and on the probability of being investigated and penalized. This article introduces into the standard model of tax evasion the possibility of pecuniary rewards as an economic incentive for taxpaying. The analysis shows that introducing a reward for payment of taxes leads to a welfare...
Institution partenaire
English / 01/01/1991
Optimal price adjustment under imperfect information
Variations in cost and demand do not have symmetrical impact on the optimal price of the imperfectly competitive firm. This asymmetry is not so important as long as information regarding both cost and demand is sufficient. However, it becomes crucially important in case of incomplete information. Usually firms have more complete or ‘harder’ information on cost than on demand. This...
Institution partenaire
English / 01/07/1990
Innovator-imitator trade and the welfare effects of growth
Institution partenaire
Deutsch / 01/06/1990
Umlageverfahren, Kapitaldeckungsverfahren und optimales Wachstum : 3 Anmerkungen zur Replik von M. Neumann
Institution partenaire
Deutsch / 01/01/1989
Tax evasion and equity: A theoretical analysis
This paper analyzes the behavior of an expected-utility maximizing tax evader who is aware of the fact that he gets some benefit in exchange for the taxes. Within this framework, the equity argument that the proportion by which a tax payer evades taxes decreases if the share in public expenditures that is for his benefit increases, cannot be confirmed unambiguously. There is,...
Institution partenaire
English / 01/01/1988
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