China's manufacturing sector has been a key source of the economy's dynamism. Analysis after 2007 however is hampered by problems in the key data source for empirical analysis, the National Bureau of Statistics' (NBS) annual survey of industrial firms. Issues include missing information on value...

This paper studies optimal second-best corrective regulation, when some agents/activities cannot be perfectly regulated. We show that policy elasticities and Pigouvian wedges are sufficient statistics to characterize the marginal welfare impact of regulatory policies in a large class of...

This paper discusses the externalities and market failures in cryptocurrency markets. In particular, I highlight the significant environmental externalities created by Proof-of-Work (PoW) cryptocurrencies, the most prominent of which is Bitcoin. The main goals of this paper are to quantify these...