This paper studies estimators that make sample analogues of population orthogonality
conditions close to zero. Strong consistency and asymptotic normality of such estimators is …

A simple formulation of a generalized gradient approximation for the exchange and
correlation energy of electrons has been proposed by Perdew, Burke, and Ernzerhof (PBE)[Phys. …

Background Recent evidence suggests that there is a link between metabolic diseases and
bacterial populations in the gut. The aim of this study was to assess the differences between …

Several means for improving the performance and training of neural networks for classification
are proposed. Crossvalidation is used as a tool for optimizing network parameters and …

This paper describes a method for estimating and testing nonlinear rational expectations
models directly from stochastic Euler equations. The estimation procedure makes sample …

The standard theory of decision making under uncertainty advises the decision maker to
form a statistical model linking outcomes to decisions and then to choose the optimal …

This paper examines the hypothesis that the expected rate of return to speculation in the
forward foreign exchange market is zero; that is, the logarithm of the forward exchange rate is …

This paper studies the time-series behavior of asset returns and aggregate consumption.
Using a representative consumer model and imposing restrictions on preferences and the joint …

We show how to use security market data to restrict the admissible region for means and
standard deviations of intertemporal marginal rates of substitution (IMRSs) of consumers. Our …

A grid-based real-space implementation of the projector augmented wave (PAW) method of
Blöchl [Phys. Rev. B 50, 17953 (1994)] for density functional theory (DFT) calculations is …