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Restoring Wetlands Through Wetlands Mitigation Banks 总被引:3,自引:0,他引:3
This paper offers the first economic analysis of wetlands mitigation banks. The banks are a new alternative for restoration of wetlands by developers before receiving regulatory approval for future development of wetlands in the same watershed. A stochastic optimal control model is developed which incorporates ecological uncertainty of wetlands restoration. The model helps in examining the decisions of how much to invest in a wetlands mitigation bank. The model is calibrated with data from California bioeconomic parameters. Numerical simulation of the model provides a sensitivity analysis of how model parameters of restoration costs, stochastic biological growth, interest rate, and the market value of credits affect the trajectory of investment and the optimal stopping state of wetlands quality when the investment ends. The analysis reveals that restoration of the whole site will occur when there is a reduction in restoration costs, an increase in biological uncertainty or an increase in the value of wetlands credits. Continued restoration is harder to justify with a higher interest rate. 相似文献
66.
Review of Industrial Organization - 相似文献
67.
This paper makes three principal contributions to the growing body of empirically oriented research on dynamic factor demand systems that are based on the adjustment cost model of the firm. First, a simplified procedure is described for deriving demand and supply functions which are amenable to empirical estimation and which are consistent with intertemporal expected profit maximization and a general expectations formation process for future prices. Second, it is pointed out that estimation of a complete system of demand and supply functions permits the empirical identification of both the firm's technology and its expectations formation process. Finally, the procedure is applied to aggregate annual U.S. manufacturing data for the 1947-1977 period and the consistency of the data with the theoretical framework is investigated. 相似文献
68.
The purpose of this paper is to unify corporate acquisitions and divestitures (e.g., spin-offs, equity carve-outs and sell-offs) into a simple but comprehensive agency model where risk and managerial incentives interact to determine an optimal corporate governance and an incentive compensation scheme. Emphasizing human and nonhuman aspect of corporate assets, the model not only explains existing empirical evidence regarding contractual and organizational changes, but also suggests new perspective regarding firms' behavior around corporate acquisitions and divestitures. Thus, it attempts to reconcile between synergistic and agency viewpoints in the takeover literature and provides determining factors in choosing between spinoffs and equity carve-outs. 相似文献
69.
We show risk exposures and premiums associated with the Chen, Roll, and Ross (1986) risk factors change over time and depend on stock market and business cycle condition. Findings also indicate that factor risk premiums change sign between January and non-January, especially during bull markets. These findings serve as a caveat for portfolio managers who allocate assets to match desired exposures to key macroeconomic risk factors. 相似文献
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