due to the burning of bituminous coal for heat. We estimate the effects of this bituminous coal consumption on mortality … rates in the U.S. during the mid-20th century. Coal consumption varied considerably during the 20th century due to coal … of confounding factors, we use a triple-differences identification strategy that relies on variation in coal consumption …

In a recent paper, Hart and Moore (2008) introduce new behavioral assumptions that can explain long term contracts and … and, in particular, Hart and Moore's notion that contracts provide reference points. In this paper, we examine … tradeoff between rigidity and flexibility in a trading environment with incomplete contracts and ex ante uncertainty about the …

building trust and substituting for the difficulty of enforcing contracts internationally. The networks we are interested in …

contracts are prematurely terminated. In the absence of contracting frictions that prevent contractors from redesigning … contracts to accommodate exogenous policy changes, PPLD would not be distortionary or redistributive. If contracting frictions …

-leisure trade-off. We allow workers a choice between two contracts: a piece rate contract, wherein he is paid per unit of service … simulate elasticities and the effects of ex ante reforms on physician contracts. Our results show that physician services and …