This paper investigates the effects of ordinal regressors in linear regression models. Each ordered categorical variable is interpreted as a rough measurement of an underlying continuous variable as it is often done in microeconometrics for the dependent variable. It is shown that using ordinal...

The polychoric correlation is an ML estimator for the correlation parameter between two latent variables. Each latent variable is only observed as an ordered categorical indicator. This estimator is based on an assumption on the joint distribution for the latent variables which in this case is...

The measurement of the impact of technical change has received significant attention within the economics literature. One popular method of quantifying this impact of technical change is the use of growth accounting index numbers. However, in a recent article Nelson and Pack (1999) criticise the...

Este trabajo desarrolla un método flexible y semiestructural para cuantificar empíricamente la transmisión no lineal de los shocks de renta a las decisiones de elección de cartera de los hogares, tanto en el margen extensivo como en el intensivo. Modelizo la participación en el mercado de...

"In symmetric commons dilemmas, peer sanctioning, i.e. the possibility to gather information about the resource use of others and to sanction overuse, can be an effective structural solution in terms of resource conservation. However, most real world commons are characterized by structural...

This paper reports on research that integrates cost modeling and business simulation into conceptual design environments for advanced launch vehicle programs. A new design-oriented computer tool has been developed and used that is capable of using price-elastic market estimates, price...