One problem when estimating a Cobb-Douglas production function with micro data is how to deal with the observations that show positive output but do not use some of the inputs. As the log of zero is not defined one standard procedure is to arbitrarily replace those zero values with "sufficinetly...

This paper estimates econometrically the impact of NAFTA on US-Mexico and US-third countries (groups of countries) trade flows. Using a traditional gravity-equation framework, we try to see to what extent the bilateral trade flows between the US and different countries differ from a gravity-type...

One problem when estimating a Cobb-Douglas production function with micro data is how to deal with the observations that show positive output but do not use some of the inputs. As the log of zero is not defined, one standard procedure is to arbitrarily replace those zero values with...

The standard approach for fitting a Cobb-Douglas production function to micro data with zero values is to replace those values with "sufficiently small" numbers to facilitate the logarithmic transformation. In general, the estimates obtained are extremely sensitive to the transformation chosen,...