We set up a dynamic model of firm investment in which liquidity constraints enter explicity into the firm's maximization problem. The optimal policy rules are incorporated into a maximum likelihood procedure which estimates the structural parameters of the model. Investment is positively related...

This paper examines unemployed workers' declared willingness to work for wages lower than the one adequate for their qualification. We analyze which personal and economic characteristics determine this willingness and how it changes along the individuals' unemployment spells. The main results...

The discussion about the need for Social Security reforms has recently resurfaced, and is expected to continue to be part of the political agenda in the near future. Our paper is a step in the direction of providing a framework for policy analysis that accounts for employment uncertainty,...

Reliable empirical evidence about the effects of unemployment insurance benefits (UIB) on individuals’ labour market paths is crucial for designing appropriate labour market policies. In particular, medium and long-run effects of the UIB system can differ markedly from short-term impact when...

Recently, Hahn (2008) has proposed the mixture between the uniform and the beta distributions as an alternative to the beta distribution in PERT methodology which allows for varying amounts of dispersion and a greater likelihood of more extreme tail-area events. However, this mixture lacks a...

The analysis of long memory processes in capital markets has been one of the topics in finance, since the existence of the market memory could implicate the rejection of an efficient market hypothesis. The study of these processes in finance is realized through Hurst exponent and the most...

Es conocido que el método del PERT clásico usa una subfamilia de betas para todos los casos, debido a la imposibilidad de estimar cuatro parámetros a partir de los tres valores aportados por el experto. Imponiendo una restricción a la familia global de betas de primera especie (que el...

Since Mandelbrot (1963) [2] highlighted the fact that data on the yield of financial assets exhibit leptokurtosis, different distributions have been presented as alternatives to the normal distribution. So far little consideration has been given to the capacity that these distributions have to...

The aim of this paper is to determine a beta distribution of the first type, when a group of experts coincide in the minimum and the maximum values of a random variable (times, in the case of tasks; cash-flows, in the case of investments, etc.), but they disagree with the more likely values. For...