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thresholding method, comparing it with other estimators in simulations and an empirical application on the design of minimum …
Persistent link: https://www.econbiz.de/10012316010
multiple testing (MT) estimator to a number of thresholding and shrinkage estimators in the literature in a detailed Monte … theoretical constant arising in the rate of convergence of existing thresholding estimators. We compare the performance of our … the inverse covariance matrix is of interest then we recommend a shrinkage version of the MT estimator that ensures …
Persistent link: https://www.econbiz.de/10010361374
of estimating the theoretical constant arising in the rate of convergence of existing thresholding estimators, and hence …
Persistent link: https://www.econbiz.de/10011405221
This paper extends previous studies in modeling and estimating energy demand functions for both gasoline and kerosene petroleum products for Nigeria from 1977 to 2008. In contrast to earlier studies on Nigeria and other developing countries, this study specifically tests for the possibility of...
Persistent link: https://www.econbiz.de/10010289392
We define risk spillover as the dependence of a given asset variance on the past covariances and variances of other assets. Building on this idea, we propose the use of a highly flexible and tractable model to forecast the volatility of an international equity portfolio. According to the risk...
Persistent link: https://www.econbiz.de/10010407672
This paper extends previous studies in modeling and estimating demand for gasoline for Nigeria from 1977 to 2008. The ingenious attempt of this study, contrast to earlier studies on Nigeria and other developing countries, lies in its assumption of structural breaks in the long run relationship...
Persistent link: https://www.econbiz.de/10013099898
An error-correction model identifies determinants of growth consistent with results from panel regressions based on a standard Cobb-Douglas production function for El Salvador for 1970-1995, with structural factors affecting the technology variable and macroeconomics and expectations explaining...
Persistent link: https://www.econbiz.de/10012782205
We investigate price duration variance estimators that have long been neglected in the literature. We show i) how price duration estimators can be used for the estimation and forecasting of the integrated variance of an underlying semi-martingale price process and ii) how they are affected by a)...
Persistent link: https://www.econbiz.de/10012855793
The persistence property of inflation is an important issue for not only economists, but, especially for central banks, given that the degree of inflation persistence determines the extent to which central banks can control inflation. Further, not only is the level of inflation persistence that...
Persistent link: https://www.econbiz.de/10013045937
The paper compares one-period ahead forecasting performance of linear vector-autoregressive (VAR) models and single-equation Markov-switching (MS) models for two cases: when leading information is available and when it is not. The results show that single-equation MS models tend to perform...
Persistent link: https://www.econbiz.de/10013147524