TY - BOOK AU - David,Joel M. AU - Hopenhayn,Hugo A. AU - Venkateswaran,Venky ED - National Bureau of Economic Research. TI - Information, Misallocation and Aggregate Productivity T2 - NBER working paper series PY - 2014/// CY - Cambridge, Mass. PB - National Bureau of Economic Research N1 - July 2014; Hardcopy version available to institutional subscribers N2 - We propose a theory linking imperfect information to resource misallocation and hence to aggregate productivity and output. In our setup, firms look to a variety of noisy information sources when making input decisions. We devise a novel empirical strategy that uses a combination of firm-level production and stock market data to pin down the information structure in the economy. Even when only capital is chosen under imperfect information, applying this methodology to data from the US, China, and India reveals substantial losses in productivity and output due to the informational friction. Our estimates for these losses range from 7-10% for productivity and 10-14% for output in China and India, and are smaller, though still significant, in the US. Losses are substantially higher when labor decisions are also made under imperfect information. We find that firms turn primarily to internal sources for information; learning from financial markets contributes little, even in the US UR - https://www.nber.org/papers/w20340 UR - http://dx.doi.org/10.3386/w20340 ER -