-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 …

firms position themselves in global production lines and how this evolves with productivity and performance over the firm …

low quality of animal food. Correction of this market failure is attained by taxing animal food output and subsidizing … animal food quality. With consumer and producer heterogeneity, regulation is the same but sector-specific, with a more …