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...

In Colombia, Mexico, and Morocco, firms' past exposure to foreign knowledge through exports, imported imputs, and foreign direct investment does not help to predict current product quality or productive efficiency

Results from a two-step simulation that uses a computable general equilibrium model and detailed consumption and income household data suggests that trade liberalization benefits people in the poorest deciles more than those in the richer ones