A new randomized test for joint zero alpha in linear factor asset pricing models that avoids covariance matrix estimation and handles large N and T with heteroskedasticity and cross-sectional dependence.
We have E mX t=1 |wt −ewt,ς| !p ≤ mp−1 mX t=1 E |wt −ewt,ς|p ≤ c0mp−1mℓ−pa ≤ c1mp/2, on account of (C.3)
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A general randomized test for Alpha
A new randomized test for joint zero alpha in linear factor asset pricing models that avoids covariance matrix estimation and handles large N and T with heteroskedasticity and cross-sectional dependence.