Semi-Parametric Weak Instrument Regressions with an Application to the Risk-return Trade-off

No 1576, Econometric Society World Congress 2000 Contributed Papers from Econometric Society

Abstract: Recent work shows that a low correlation between the instruments and the included variables leads to serious inference problems. We extend the local-to-zero analysis of models with weak instruments to models with estimated instruments and regressors and with higher-order dependence between instruments and disturbances. This makes this framework applicable to linear models with expectation variables that are estimated non-parametrically. Two examples of such models are the risk-return trade-off in finance and the impact of inflation uncertainty on real economic activity. Using more robust LM confidence intervals leads us to conclude that no statistically significant risk premium is present in returns on the S&P 500 index, excess holding yields between 6-month and 3-month Treasury bills, or in yen-dollar spot returns.

Date: Written 2000-08-01
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Related works:
Working Paper: Semi-Parametric Weak Instrument Regressions with an Application to the Risk-Return Trade-off (1999)
Working Paper: Semi-Parametric Weak Instrument Regressions with an Application to the Risk-Return Trade-off (2002)
Journal Article: Semiparametric Weak-Instrument Regressions with an Application to the Risk-Return Tradeoff (2003)
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