Some of the explanations for the decline in mobility involve long-term trends — such as population aging or increased ...

Regional and urban economics employs theoretical modeling to examine how real-world factors shape regional development. These ...

The World Bank's International Comparison Program releases data on purchasing power parities between different countries ... and economic trouble can cross geographic boundaries.

Geographical variation in species' population responses to changes in temperature and ... leading to polewards shifts in the distribution of those species. However, in the tropics, we would expect ...

Blackburn, T.M., Gaston, K.J., Quinn, R.M., Arnold, H. & Gregory, R.D. 1997. Of mice and wrens: the relation between abundance and geographic range size in British ...