Structural time series analysis, which requires no prior assumptions regarding stationarity and allows for a wide variety of behavior, reveals that the net barter terms of trade between primary commodities and manufactures has a negative deterministic trend over this century as hypothesized by...

This report presents the short- and long-run behavior of primary commodity prices and the implications of movements in these prices for developing countries. Most earlier studies of the long-term trend in the net barter terms of trade between primary commodities and manufactures have suffered...

The existence of linkages between the agricultural sector and the rest of the economy points to the specificity of that sector and justifies why we can conceive of a macroeconomics of agriculture. The primary sector is characterized by product homogeneity, a pre-condition for the absence of...