Environmental safety stock: The impacts of regulatory and voluntary control policies on production planning, inventory control, and environmental performance

Chialin Chen and George E. Monahan

European Journal of Operational Research, 2010, vol. 207, issue 3, 1280-1292

Abstract: This paper analyzes the impacts of different pollution control policies on a firm's decisions of production planning and inventory control. Based on a stochastic model with both demand and environmental uncertainties, we derive the optimal policies of production planning and inventory control under both regulatory and voluntary pollution control approaches, and investigate their operational and environmental effects. We establish that the conventional wisdom which suggests that reduction of environmental waste at the end of a production process also decreases the stock and throughput levels of a production system is not necessarily true. Rather, a regulatory environmental standard that limits the total amount of waste may induce the firm to raise its planned stock level, which would lead to a higher expected amount of environmental wastes before the standard is enforced as well as environmental risks at other stages of the production process. The additional planned stock level, which is termed "environmental safety stock," can be reversed by using the voluntary control approach that provides the firm with the flexibility to occasionally exceed the environmental standard. We also conduct numerical experiments to analyze the effects of different values of model parameters under different control approaches. The analytical results provide new insights to the impacts of a firm's production and inventory decisions on the natural environment as well as to the choices of pollution control approaches by decision makers in both the private and public sectors.

Keywords: Production; planning; Inventory; control; Environmental; management (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (15)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ejores:v:207:y:2010:i:3:p:1280-1292

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