Showing 1 - 10 of 15
The Heckman sample selection model relies on the assumption of normal and homoskedastic disturbances. However, before considering more general, alternative semiparametric models that do not need the normality assumption, it seems useful to test this assumption. Following Meijer and Wansbeek...
Persistent link: https://www.econbiz.de/10010417177
We investigate the direct connection between the uncertainty related to estimated stable ratios of stock prices and risk and return of two pairs trading strategies: a conditional statistical arbitrage method and an implicit arbitrage one. A simulation-based Bayesian procedure is introduced for...
Persistent link: https://www.econbiz.de/10011505854
To improve short-horizon exchange rate forecasts, we employ foreign exchange market risk factors as fundamentals, and Bayesian treed Gaussian process (BTGP) models to handle non-linear, time-varying relationships between these fundamentals and exchange rates. Forecasts from the BTGP model...
Persistent link: https://www.econbiz.de/10011505885
-known and powerful Jarque-Bera test. A further size-correct test, based on combining two test statistics, is shown to have yet …
Persistent link: https://www.econbiz.de/10011297545
variety of test statistics as functions of eight mutually independent random variables and two nuisance parameters. The … distributions of the statistics are shown to have an ill-defined limit as the parameter that determines the strength of the …
Persistent link: https://www.econbiz.de/10011411381
regression. Although all GIMTs exhibited good level and power performance for the larger sample sizes, GIMT statistics with fewer …
Persistent link: https://www.econbiz.de/10011650480
We develop and discuss a parameterization of vector autoregressive moving average processes with arbitrary unit roots and (co)integration orders. The detailed analysis of the topological properties of the parameterization - based on the state space canonical form of Bauer and Wagner (2012) - is...
Persistent link: https://www.econbiz.de/10012312162
This paper focuses on the Bayesian model average (BMA) using the power-expected-posterior prior in objective Bayesian variable selection under normal linear models. We derive a BMA point estimate of a predicted value, and present computation and evaluation strategies of the prediction accuracy....
Persistent link: https://www.econbiz.de/10012265506
Researchers are often faced with the challenge of developing statistical models with incomplete data. Exacerbating this situation is the possibility that either the researcher’s complete-data model or the model of the missing-data mechanism is misspecified. In this article, we create a formal...
Persistent link: https://www.econbiz.de/10012160862
A standard test for weak instruments compares the first-stage F-statistic to a table of critical values obtained by Stock and Yogo (2005) using simulations. We derive a closed-form solution for the expectation from which these critical values are derived, as well as present some second-order...
Persistent link: https://www.econbiz.de/10011945785