Working Paper: NBER ID: w29073
Authors: Don Fullerton; Shan He
Abstract: The interdisciplinary circular economy literature recommends longer lasting products, to reduce pollution from repeated production and disposal. For any type of appliance, we assume consumers choose among variants with different durability. Firms are competitive. Standard Pigovian analysis shows that optimal taxes depend on pollution and not on product life. Here, we find conditions where consumers choose lives that are too short – a “durability gap”. First, we show that suboptimal existing output taxes imply suboptimal durability. An increase in uniform tax on all variants encourages purchase of a more durable variant and raises welfare. Second, welfare also is raised by a subsidy for choosing a more durable variant or by a marginally binding durability mandate. Third, we find that a social discount rate less than the private rate is the strongest case for policy to favor durability. Fourth, the consumer misperceptions we study have ambiguous implications for durability policy.
Keywords: circular economy; durability gap; market failures; optimal taxation
JEL Codes: H21; H23; Q58
Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.
| Cause | Effect |
|---|---|
| Market Failures and Durability Choices (L15) | Durability Gap (L15) |
| Suboptimal Existing Output Taxes (H21) | Suboptimal Durability Choices (L15) |
| Increasing Uniform Tax on All Product Variants (H29) | Purchase of More Durable Products (L68) |
| Purchase of More Durable Products (L68) | Welfare (I38) |
| Lower Social Discount Rate (H43) | Policies Favoring Durability (L15) |
| Consumer Misperceptions (D18) | Durability Policy Implications (L68) |