A waste management model for optimal recycling-landfilling policies under macroeconomic conditions

作者：Chen Chang Chih; Shyu So De; Wu Yen Chun; Yang Chih Yuan^*

来源：Economic Modelling, 2011, 28(3): 852-858.

DOI：10.1016/j.econmod.2010.10.020

• Waste management policies
• Optimal recycling ratio
• Macroeconomic conditions

This research provides a waste management model in the presence of macroeconomic conditions. An optimal control problem which integrates the recycling-landfilling decision with industry supply-demand dynamics is designed to achieve the value-maximizing objective. The model simultaneously considers idiosyncratic technical and aggregate demand shocks, while the stoppage time for landfill use is assumed to follow a Cox process with the intensity function of a firm's total waste collection. The closed-form solution of the optimal recycling ratio is also derived. The results suggest that when macroeconomic effects are neglected, optimal recycling ratios tend to be underestimated.

• 出版日期2011-5
• 单位中山大学