By most measures, the United States is the most unequal of the world's advanced capitalist economies, and inequality has increased substantially over the past 30 years. This article documents trends in the inequality of three key economic distributions--hourly earnings, annual incomes, and net wealth--and relates these developments to changes in economic and social policy over the past three de...

Improving the understanding of cropland change and its driving factors is a current focus for policy decision-makers in China. The datasets of cropland and cropland changes from the 1970s to the 2000s were used to explore whether climate change has produced spatiotemporal changes to cropland in northern China since the 1970s. Two representative indicators of heat and water resources, which are ...

Since the 1970s almost all OECD countries have published projections or forecasts of future energy consumption. By now, three decades later, the actual values of energy consumption are available for the same number of countries and thus a considerable amount of empirical data is available concerning formal hypothesis testing, e.g. whether there have been improvements in the forecasting accuracy...

A heading is missing from the left-most column in Table 4. The first column should be labeled Natural vegetation types. Please see the corrected Table 4 here. open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.