Since reform and open to the outside world, foxtail millet planting area in Hebei Province has constantly reduced, and its planting region has changed from the whole province into some regions, with obvious changes. In this paper, by using qualitative and quantitative approaches like chart...

In this paper, we used the production function method and the Van Norden method to estimate China's output gap (and potential output) from 1985 to 2009 year,and comparise the two methods. The results showed that: (1) the results of different methods are basically consistent with our economic...