), we are concerned with valid moment approximations and employ them to characterize the second order bias structure of the …

, increasing statistical power, reducing bias and enhancing credibility, meta-analysis is widely regarded as 'best evidence …

nonlinearity of the problem. We present a penalty for the objective function that reduces the bias in the resulting point estimates … practice. The form of the penalty also provides interesting intuition into how the bias reduction is working. We present … simulation results that suggest that the penalized optimization approach may substantially reduce the bias in nonlinear fixed …