The Need of Insular Exploration as Illutstrated by Birds: DR. ROBERT CUSHMAN MURPHY .............................. 533 Scientific Events: Research Grants of the Virginia Academy of Science; Congress of American Industry of the National Association of Manufacturers; Award of the Roebling Medal of the Mineralogical Society of America to Dr. Schaller; Medals of the American Geographical Society fo...

Climate policy proposals based on cap and trade mechanisms with tight caps will likely lead to highly volatile CO2 prices. This volatility is ignored in many studies, even though it can be expected to exceed that of natural gas and to exceed the wide ranges in CO2 price forecasts. Volatility will significantly increase investment risk, raise the cost of capital, and make it valuable to defer in...

Recent work has pointed towards the possibility that industries are not tied to their specific urban location as much as to their linkages with particular types of infrastructure and to their social and economic networks. Industries have similar clustering patterns even in very different cities. Using Bureau of Labor Statistics data, we conducted GIS analysis to compare Los Angeles and New York...

After Doeringer and Piore laid the foundation for an analysis of labour market segmentation (LMS) in 1971, similar approaches developed rapidly and spread all over the United States and Europe. During the 1970s and 1980s, the segmented framework or the internal labour market (ILM) concept were necessary references in labour economics studies. Different interpretations of the segmentation theory...