Innovation Is the New Competition: Product Portfolio Choices with Product Life Cycles

Working Papers

The product life cycle, or time path of sales, of many high-tech goods and services is bell-shaped. I show that product life cycles endogenously arise in markets with rapid technological innovations, are heterogeneous across products, and are affected by the level of market competition.Read More

Institutional Change and Productivity Growth in China’s Manufacturing: The Microeconomics of Knowledge Accumulation and “Creative Restructuring”

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This article investigates the microeconomics underlying the spectacular growth of productivity in China’s manufacturing sector over the period 1998–2007. Underlying the aggregate evidence of such dramatic growth, one observes a large, albeit shrinking, intra-sectoral heterogeneity coupled with an even more important process of learning and knowledge accumulation.Read More

The Patterns of Chinese Firm Growth: A Conditional Estimation Approach of the Asymmetric Exponential Power Density

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This article investigates the impact of ownership type on the entire growth rate distributional mass of Chinese firms, using a conditional estimation approach of the asymmetric exponential power density that goes beyond simple location-shift analysis.Read More

Real Estate Prices in Beijing, 1644-1840

Published Research

This paper provides the first estimates of housing price movements for Beijing in late pre-modern China. We hand-collect from archival sources transaction prices and other house attribute information from the 498 surviving house sale contracts for Beijing during the first two centuries of the Qing Dynasty (1644-1840), a long period without major wars, political turmoil, or significant institutional change in the Chinese capital.Read More

Movie piracy and sales displacement in two samples of Chinese consumers

Published Research

Intellectual property piracy is widely believed, by authorities in both US industry and government, to be rampant in China. Because we lack evidence on the rate at which unpaid consumption displaces paid consumption, we know little about the size of the effect of pirate consumption on the volume of paid consumption. Read More