We study the design of price mechanisms for communication network problems in which a user's utility depends on the amount of flow she sends through the network, and the congestion on each link depends on the total traffic flows over it. The price mechanisms are characterized by a set of axioms...

Using new measures of expanded Internet access in China and internet-based search, we examine how competitive shocks from China impact U.S. innovation through the markets for innovation and existing products. We identify shocks to innovation and existing product competition using the geography...

Using panel data from 242 cities in China, we examine the impact of government research and development (R&D) spending on corporate technological innovation. We find that listed firms located in cities with higher government R&D expenditures are more innovative than firms in other cities....