While there has been significant progress in the measurement of an organization's environmental and social impacts from their operations, metrics to evaluate the impact of products once they come to market lag far behind. In this paper we provide a framework for systematic measurement of product...

We document a new stylized fact for the life-cycle behavior of consumer prices: relative to a narrowly defined set of competing products, the price of individual products tends to fall over the product lifetime. This holds true for more than 90% of the expenditure items underlying the U.K....