This paper proposes a model in which the removal of barriers to trade and factor mobility is associated with endogenous fragmentation of the value-added chain. Fragmentation is the outcome of cost competition - the profit-maximizing choice of cost structure by monopolistically competitive firms....

This article introduces a new Melitz-type model of heterogeneous producers with decreasing returns to scale and different productivities. Different to previous models, it describes smallholder producers in rural areas of developing countries in the context of environment and development...

Consumers increasingly care about firms’ ethical conduct (e.g., labor and environmental practices) when making their consumption choices. This note presents a simple framework to highlight the possibility that this development may induce a less desirable production technology choice and bring...