This study addresses the question with a rigorous econometric approach and distills global results from a multitude of evidence. The data set compiled is unique in its coverage, size, and composition, making it possible to address for the first time methodological problems that have plagued...

Is private operation better than public when it comes to utilities; a recent global study funded by the World Bank and Public-Private Infrastructure Advisory Facility (PPIAF) examines the effect of private sector participation in electricity distribution and water and sanitation services. Using...

Permitting, licensing, and other authorization procedures are an integral part of investing in renewable energy. For private companies, the quality of these procedures can drastically affect transaction costs and project risk. Optimal regimes are tailored to country specifics and depend on the...

The Kyrgyz Republic has experienced modest and volatile economic expansion since the economy bottomed out from the transition recession in 1995, when GDP amounted to about half of its pre-independence levels. As a result of structural reforms at the start of transition, the emergence of...

The Kyrgyz Republic has experienced modest and volatile economic expansion since the economy bottomed out from the transition recession in 1995, when GDP amounted to about half of its pre-independence levels. As a result of structural reforms at the start of transition, the emergence of...

The purpose of this paper is to derive a Rao's efficient score statistic for testing for heteroscedasticity in an error components model with only individual effects. We assume that the individual effect exists and therefore do not test for it. In addition, we assume that the individual effects,...

The Swiss authorities plan to reduce the currently excessively high taxes on bioethanol. We argue that a fair tax treatment of ecological fuels could lead to a rapid development in their use in the next few years. For this to be the case, Switzerland would however have to open up its market to...

This paper analyzes the important time variation in U.S. aggregate portfolio allocations. To do so, we first use flexible descriptions of preferences and investment opportunities to derive optimal decision rules that nest tactical, myopic, and strategic portfolio allocations. We then compare...