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Hand, John R., Robert W. Holthausen, and Richard W. Leftwich, 1992, The effect of bond rating agency announcements on bond and stock prices, Journal...
Hand, John R.M., Robert W. Holthausen, and Richard W. Leftwich, 1992, The effect of bond rating agency announcements on bond and stock prices, Journal of Finance 47, 733752. Hansen, Lars P., 1982, Large sample properties of generalized method of moments estimators, Econometrica 50, 10291054. Hansen, Lars P., and Ravi Jagannathan, 1997, Assessing specification errors in stochastic discount factor models, Journal of Finance 52, 557590. Heston, Steve, and K. Geert Rouwenhorst, 1994, Does industrial structure explain the benefits of international diversification?