Using the "unit output price" profit function, the study analyses the relative efficiency of (a) old versus new seeds, and (b) large versus small farms in the production of new varieties of wheat and rice in the Indus Basin of Pakistan. It is found that whereas farm size has no effect on...

If unions "force employers off their demand curves" the measured elasticity of substitutio n should be lower where unionization is stronger. Estimates based on pooled data for twenty two-digit SIC Canadian manufacturing industrie s over the period 1971-81 support this proposition. Point...