Firms have discretion over task allocations, which may dampen employees' career prospects, and, hence, motivation. Task assignments and worker motivation interact through the extent of labor market competition; that is, the possibility of moving to another firm. More competition enhances...

We consider an exchange economy in which a seller can trade an endowment of a divisible good whose quality she privately knows. Buyers compete in menus of non-exclusive contracts, so that the seller may choose to trade with several buyers. In this context, we show that an equilibrium always...

Consider a seller of a divisible good, facing several identical buyers. The quality of the good may be low or high, and is the seller's private information. The seller has strictly convex preferences that satisfy a single-crossing property. Buyers compete by posting arbitrary menus of contracts....