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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:...

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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...

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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...

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English / 01/02/1994

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...

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English / 01/01/1993

Analytical solutions for the pricing of american bond and yield options

In this paper we use the Cox, Ingersoll, and Ross (1985b) single-factor, term structure model and extend it to the pricing of American default-free bond puts. We provide a quasi-analytical formula for these option prices based on recently established mathematical results for Bessel bridges, coupled with the optimal stopping time method. We extend our results to another interest rate...

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English / 01/01/1993

Diffusion coefficient estimation and asset pricing when risk premia and sensitivities are time varying

The exponential of a scalar diffusion is considered. Point estimates of the diffusion coefficient can be obtained by considering proportional increments of different powers of the exponential. an investigation of the minimum variance estimator gives unique optimal power.

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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...

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Deutsch / 01/01/1993

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