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Geographic aggregation and induced innovation in American agriculture
Liu, Qinghua, (2006)
Role of prices in Western agriculture : testing for consistent aggregation, induced innovation, and market integration
Liu, Qinghua, (2003)
Price-induced technical progress in 80 years of US agriculture
Paris, Quirino, (2005)
Induced innovation and marginal cost of new technology
Liu, Yucan, (2009)
Productivity growth and convergence in US agriculture : new cointegration panel data results
Liu, Yucan, (2011)
Testing expected utility maximization under price and quantity risk with a heterogeneous panel