At this work we study the increased migration streams at municipal level using information of the national census 2001, we used two types of analysis the first one based in classical regressions and the second one based in spatial expanded models. El presente trabajo estudia los flujos de...

In this work we found first and second derivative from the log likelihood function of the Multivariate Probit model Multivariante, later these derivatives are implement in Ox to measure the impact of the use of analytical derivatives on the time of estimation in this class of models. En este...

El corredor de conservación Amboró-Madidi es de prioridad global debido a su alta biodiversidad y endemismo. Al mismo tiempo, las tierras fiscales de la región son apreciadas por migrantes sin tierra del altiplano. En este documento contrastamos la necesidad de tierra para actividades...

Los objetivos del estudio son proyectar el valor de la tasa de mortalidad materna por 100,000 nacidos vivos para el año 2015 bajo un escenario de tendencia y encontrar la opción más costo-eficiente para alcanzar la meta del milenio de reducir esta tasa en ¾, lo que implica, en el caso de...

Este documento proporciona un análisis cuantitativo de la situación socio-económico y ambiental en el corredor Amboró-Madidi, incluyendo tendencias en el pasado y proyecciones para el futuro. La región esta relativamente bien conservada hasta ahora, pero hay amenazas que podrían llevar a...

Several recent papers argue that contracts provide reference points that affect ex post behavior. We test this hypothesis in a canonical buyer-seller relationship with renegotiation. Our paper provides causal experimental evidence that an initial contract has a highly significant and...

We present an international trade model with multiproduct firms. Firms are heterogeneously endowed with two types of capabilities that jointly determine the trade-off within firms between managing a large portfolio of products and producing at low marginal cost. The model can explain many of the...

This paper reports data from a laboratory experiment on two-period moral hazard problems. The findings corroborate the contract-theoretic insight that even though the periods are technologically unrelated, due to incentive considerations principals can benefit from offering long-term contracts...

We study a continuous-time game of strategic experimentation in which the players try to assess the failure rate of some new equipment or technology. Breakdowns occur at the jump times of a Poisson process whose unknown intensity is either high or low. In marked contrast to existing models, we...

We study endogenous group formation in tournaments employing experimental three-player contests. We find that players in endogenously formed alliances cope better with the moral hazard problem in groups than players who are forced into an alliance. Also, players who are committed to expending...