By constructing a production function and using neural networks the authors study major trends of small business development in China. Comparative analysis of these methods is given as well as relative forecast calculations

We introduce a simple new hypothesis testing procedure, which, based on an independent sample drawn from a certain density, detects which of $k$ nominal densities is the true density is closest to, under the total variation (L_{1}) distance. We obtain a density-free uniform exponential bound for...