Showing 1 - 10 of 6,428
This paper presents a new method for identifying triangular systems of time-series data. Identification is the product … of a bivariate GARCH process. Relative to the literature on GARCH-based identification, this method distinguishes itself …. Estimation follows OLS and standard univariate GARCH and ARMA techniques, or GMM. A Monte Carlo study of the GMM estimator is …
Persistent link: https://www.econbiz.de/10010280942
The issue of quality and its relationship with efficiency and performance is a crucial operational issue in many fields of study including production economics, operations research, engineering and business management. In this paper we provide a methodology for identifying latent quality...
Persistent link: https://www.econbiz.de/10012060659
In a treatment effect model with unconfoundedness, treatment assignments are not only independent of potential outcomes given the covariates, but also given the propensity score alone. Despite this powerful dimension reduction property, adjusting for the propensity score is known to lead to an...
Persistent link: https://www.econbiz.de/10011494361
We establish the consistency and asymptotic normality for a class of estimators that are linear combinations of a set of √ n-consistent estimators whose cardinality increases with sample size. A special case of our framework corresponds to the conditional moment restriction and the implied...
Persistent link: https://www.econbiz.de/10010288299
A two-step generalized method of moments estimation procedure can be made robust to heteroskedasticity and autocorrelation in the data by using a nonparametric estimator of the optimal weighting matrix. This paper addresses the issue of choosing the corresponding smoothing parameter (or...
Persistent link: https://www.econbiz.de/10010368186
function and that for generalised method of moments (GMM) with weight matrix equal to the inverse of the efficient GMM metric … for GMM for the non-diagonal GMM weight matrix setting. The paper demonstrates that GMM in such circumstances delivers a … GMM with a non-diagonal weight matrix and GEL. A simulation study examines the efficacy of the non-diagonal GMM and GEL …
Persistent link: https://www.econbiz.de/10011941462
We give a general construction of debiased/locally robust/orthogonal (LR) moment functions for GMM, where the …
Persistent link: https://www.econbiz.de/10011941476
This paper shows how to construct locally robust semiparametric GMM estimators, meaning equivalently moment conditions …
Persistent link: https://www.econbiz.de/10011594341
We investigate a model in which we connect slowly time varying unconditional long-run volatility with short-run conditional volatility whose representation is given as a semi-strong GARCH (1,1) process with heavy tailed errors. We focus on robust estimation of both long-run and short-run...
Persistent link: https://www.econbiz.de/10010318677
coefficient specification to capture this type of heterogeneity in behaviour, and discusses nonparametric identification and … estimation of the distribution of random coefficients. We establish nonparametric point identification of the joint distribution … markets. Moreover, we establish set identification of the density of the coefficients on the interaction effects, and provide …
Persistent link: https://www.econbiz.de/10010318707