This paper documents the diverging trends in volatility of the growth rate of sales at the aggregate and firm level. We … establish that the upward trend in micro volatility is not simply driven by a compositional bias in the sample studied. We argue … that this new fact sheds some shadows on the proposed explanations for the decline in aggregate volatility and that, given …

This paper examines price volatility and transmission of rice markets in Ghana and draws implications for food security … corrections in short-run deviations of price ensure continuous accessibility of rice in the country. Estimates from the volatility …