-distributed firm productivity and fixed costs of exporting, predicts that, conditional on the fixed costs of exporting, all variation … of firm productivity allows the Melitz model to successfully match the role of the intensive margin evident in the EDD … estimate a generalized Melitz model with a joint lognormal distribution for firm productivity, fixed costs and demand shifters …

' management competency is associated with a 7.5 percent improvement in sales productivity and a 29.2 increase in profitability …

types, are affected differently. Given the same restrictive TBTs, firms with higher productivity suffer less, while firms … with lower productivity are more vulnerable to the trade barriers. …