This paper examines issues which have arisen from the growth of non-tariff measures (NTM)s as the preferred instrument of government intervention in commodities markets, especially for agricultural commodities. In order to understand the effects of NTMs and to compare them with tariffs, the...

This paper derives a family of multiple-output multiple-input production functions from the underlying technologies. These technologies are represented by average yield functions for each of the commodities (crops) produced from a common pool of resources. The production functions are implicitly...

For decades the world's agricultural markets have been highly distorted by government policies, but differently for different commodities such that a ranking of weighted average nominal rates of assistance across countries can be misleading as an indicator of the trade or welfare effects of...