Does state ownership hinder or help firms access credit? We use data on almost 4 million firms in 89 countries to study the relationship between state ownership and corporate leverage. Controlling for country-sector-year fixed effects and conventional firm-level determinants of leverage, we show...

In this paper, a methodology for modeling surface wildfire propagation through a complex landscape is presented. The methodology utilizes a Delaunay triangulation to represent surface fire spread within the landscape. A procedure to construct the graph and estimate the rate of spread along the...

In this paper, the optimal design and analysis of evacuation routes in transportation networks is examined. An methodology for optimal egress route assignment is suggested. An integer programming (IP) formulation for optimal route assignment is presented, which utilizes M/G/c/c state dependent...

We use unique firm-level data on management practices and energy expenditures in about 2,000 manufacturing firms in central and eastern Europe, Central Asia and Middle East and North Africa to examine how the quality of management practices relates to the energy intensity of firms in the...

During the technological and military competition of the Cold War, the Soviet government created “science cities” – urban centres that hosted a high concentration of research and development facilities. But what has been the long-term effect of these cities? This paper finds that in...