Food security, welfare, and partial de-regulation of parastatals
研究了准国营企业部分放松管制对粮食安全指标的影响，发现效果取决于初始和改革后的市场结构，且部分放松管制不一定改善粮食安全。
Complete de-regulation of parastatals is often advocated as a desirable reform, although it is usually opposed by vested interests and by those who perceive that the de-regulated market can be dominated by a small number of private firms. In practice, however, reform and de-regulation of parastatals is typically partial in nature. We specify a model that allows us to consider the effects of partial reform and partial de-regulation on various metrics of food security. We show that how these metrics change depends on the market structure that defines the starting point as well as the market structure that emerges after de-regulation. In this second-best world, partial de-regulation does not necessarily enhance food security and we identify the determinants of that outcome. The assessment of the desirability of de-regulation is also contingent on the food security metric used.