Joskow (1987) examined the importance of specific investments to the contract duration of coal contracts. Since different price-adjust mechanisms are also adopted and provide different incentives during a long-term relationship, this paper examines how the level of specific investments affect...

This paper provides sufficient conditions for the nonparametric identification of the regression function m(.) in a regression model with an endogenous regressor x and an instrumental variable z. It has been shown that the identification of the regression function from the conditional...

This paper provides sufficient conditions for the nonparametric identification of the regression function m(.) in a regression model with an endogenous regressor x and an instrumental variable z. It has been shown that the identification of the regression function from the conditional...