Narrow search
Showing 1 - 10 of 391
Cover Image
Relating stochastic volatility estimation methods
Bos, Charles S. - 2011
Estimation of the volatility of time series has taken off since the introduction of the GARCH and stochastic volatility models. While variants of the GARCH model are applied in scores of articles, use of the stochastic volatility model is less widespread. In this article it is argued that one...
Persistent link: https://www.econbiz.de/10011386124
Cover Image
On distributions of ratios
Broda, Simon A.; Kan, Raymond - 2013
A large number of exact inferential procedures in statistics and econometrics involve the sampling distribution of ratios of random variables. If the denominator variable is positive, then tail probabilities of the ratio can be expressed as those of a suitably defined difference of random...
Persistent link: https://www.econbiz.de/10010227300
Cover Image
On the exact finite sample distribution of the L1 -FCvM test statistic
Hinloopen, Jeroen - 2011
We derive the exact finite sample distribution of the L1-version ofthe Fisz-Cramér-von Mises test statistic (L1-FCvM). We first characterizethe set of all distinct sample p-p plots for two balanced sampleof size n absent ties. Next, we order this set according to the correspondingvalue of...
Persistent link: https://www.econbiz.de/10011386478
Cover Image
Untangling fixed effects and constant regressors
Klaassen, Franc; Teulings, Rutger - 2015
Fixed effects (FE) in panel data models overlap each other and prohibit the identification of the impact of ''constant'' regressors. Think of regressors that are constant across countries in a country-time panel with time FE. The traditional approach is to drop some FE and constant regressors by...
Persistent link: https://www.econbiz.de/10011431460
Cover Image
Weighted-average least squares (WALS) : confidence and prediction intervals
De Luca, Giuseppe; Magnus, Jan R.; Peracchi, Franco - 2021
We extend the results of De Luca et al. (2021) to inference for linear regression models based on weighted-average least squares (WALS), a frequentist model averaging approach with a Bayesian flavor. We concentrate on inference about a single focus parameter, interpreted as the causal effect of...
Persistent link: https://www.econbiz.de/10012510747
Cover Image
A dynamic multivariate heavy-tailed model for time-varying volatilities and correlations
Creal, Drew; Koopman, Siem Jan; Lucas, André - 2010
representation as a time-varying heavy-tailed copula which is particularly useful if the interest focuses on dependence structures …
Persistent link: https://www.econbiz.de/10011380135
Cover Image
Return-volatility relationship : insights from linear and non-linear quantile regression
Allen, David E.; Singh, Abhay Kumar; Powell, Robert; … - 2013
Persistent link: https://www.econbiz.de/10009724826
Cover Image
Mixed density based copula likelihood
Azam, Kazim; Lucas, André - 2015 - This version: January 7, 2015
We consider a new copula method for mixed marginals of discrete and continuous random variables. Unlike the Bayesian … methods in the literature, we use maximum likelihood estimation based on closed-form copula functions. We show with a … using data from the 2013 Household Finance Survey, we show how the copula dependence between income (continuous) and …
Persistent link: https://www.econbiz.de/10010464789
Cover Image
A Bayesian analysis of unobserved component models using Ox
Bos, Charles S. - 2011
Estimation of the volatility of time series has taken off since the introduction of the GARCH and stochastic volatility models. While variants of the GARCH model are applied in scores of articles, use of the stochastic volatility model is less widespread. In this articleit is argued that one...
Persistent link: https://www.econbiz.de/10011386121
Cover Image
On the ambiguous consequences of omitting variables
De Luca, Giuseppe; Magnus, Jan R.; Peracchi, Franco - 2015
This paper studies what happens when we move from a short regression to a long regression (or vice versa), when the long regression is shorter than the data-generation process. In the special case where the long regression equals the data-generation process, the least-squares estimators have...
Persistent link: https://www.econbiz.de/10010532602