@techreport{NBERw10636,
 title = "Technology Shocks and Aggregate Fluctuations: How Well Does the RBS Model Fit Postwar U.S. Data?",
 author = "Jordi Gali and Pau Rabanal",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "10636",
 year = "2004",
 month = "July",
 URL = "http://www.nber.org/papers/w10636",
 abstract = {Our answer: not so well. We reach that conclusion after reviewing recent research on the role of technology as a source of economic fluctuations. The bulk of the evidence suggests a limited role for aggregate technology shocks, pointing instead to demand factors as the main force behind the strong positive comovement between output and labor input measures.},
}