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A comment on variance decomposition and nesting effects in two- and three-level designs
Konstantopoulos, Spyros - 2007
Multilevel models are widely used in education and social science research. However, the effects of omitting levels of the hierarchy on the variance decomposition and the clustering effects have not been well documented. This paper discusses how omitting one level in three-level models affects...
Persistent link: https://www.econbiz.de/10010268429
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Modelling volatilities and conditional correlations in futures markets with a multivariate t distribution
Pesaran, Bahram; Pesaran, Mohammad Hashem - 2007
This paper considers a multivariate t version of the Gaussian dynamic conditional correlation (DCC) model proposed by … than by GARCH type volatility estimates. The t-DCC estimation procedure is applied to a portfolio of daily returns on … suggest a general trend towards a lower level of return volatility, accompanied by a rising trend in conditional cross …
Persistent link: https://www.econbiz.de/10010276254
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The economic security index: A new measure for research and policy analysis
Hacker, Jacob S.; Huber, Gregory Alain; Nichols, Austin; … - 2012
combining data from multiple surveys, we create an integrated measure of volatility in available household resources, accounting …
Persistent link: https://www.econbiz.de/10010289981
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Testing the correlated random coefficient model
Heckman, James Joseph; Schmierer, Daniel; Urzúa, Sergio - 2009
The recent literature on instrumental variables (IV) features models in which agents sort into treatment status on the basis of gains from treatment as well as on baseline-pretreatment levels. Components of the gains known to the agents and acted on by them may not be known by the observing...
Persistent link: https://www.econbiz.de/10010276910
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Exponent of cross-sectional dependence: Estimation and inference
Bailey, Natalia; Kapetanios, George; Pesaran, Hashem - 2012
An important issue in the analysis of cross-sectional dependence which has received renewed interest in the past few years is the need for a better understanding of the extent and nature of such cross dependencies. In this paper we focus on measures of cross-sectional dependence and how such...
Persistent link: https://www.econbiz.de/10010282124
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Flexibility at the margin and labor market volatility in OECD countries
Sala, Héctor; Silva, José Ignacio; Toledo, Manuel E. - 2008
achieve similar volatility than fully deregulated labor markets. Flexibility at the margin produces a gap in separation costs … de labor market volatility. This increased volatility is partially reverted when limitations in the duration and number … explain the similar volatility observed in many regulated OECD labor markets with flexibility at the margin vis-à-vis the …
Persistent link: https://www.econbiz.de/10010276682
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Uncertainty and the politics of employment protection
Vindigni, Andrea - 2008
This paper investigates the role that idiosyncratic uncertainty plays in shaping social preferences over the degree of labor market flexibility, in a general equilibrium model of dynamic labor demand where the productivity of firms evolves over time as a Geometric Brownian motion. A key result...
Persistent link: https://www.econbiz.de/10010268688
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Returns to Education and Wage Equations
Pereira, Pedro Telhado; Martins, Pedro Silva - 2001
We show why considering a number of education-dependent covariates in the wage equation decreases coefficient of education in the wage equation. We use a meta-analysis of results for Portugal to show, empirically, that this is the case. The coefficient decreases when we use covariates that can...
Persistent link: https://www.econbiz.de/10010262504
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Growth, volatility and political instability: non-linear time-series evidence for Argentina, 1896 - 2000
Campos, Nauro F.; Karanasos, Menelaos G. - 2007
What is the relationship between economic growth and its volatility? Does political instability affect growth directly … or indirectly, through volatility? This paper tries to answer such questions using a power-ARCH framework with annual … legislative changes) has an indirect (through volatility) negative impact. We also find preliminary support for the idea that …
Persistent link: https://www.econbiz.de/10010268236
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Identification and Estimation of Causal Effects of Multiple Treatments Under the Conditional Independence Assumption
Lechner, Michael - 1999
The assumption that the assignment to treatments is ignorable conditional on attributes plays an important role in the applied statistic and econometric evaluation literature. Another term for it is conditional independence assumption. This paper discusses identification when there are more than...
Persistent link: https://www.econbiz.de/10010262311