Journal of Economic Theory and Econometrics: Journal of the Korean Econometric Society

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Journal of Economic Theory and Econometrics
Journal of the Korean Econometric Society

Journal of Economic Theory and Econometrics (JETEM) is a peer-reviewed, internet-based, open-access international journal aiming to publish high-quality papers in all areas of economics. JETEM is the official publication of the Korean Econometric Society, carrying papers written either in English or in Korean. In this web-site, all English articles are fully downloadable free of charge; for Korean articles, only the title and the abstract in English are provided along with a fee-based link to the full text.

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Recently Published Articles

Volume 29, Issue 2 (June 2018)

Abstract | PDF (785 kilobytes)

No abstract is available for this article.

Testing for the Mixture Hypothesis of Conditional Geometric and Exponential Distributions, Pages 1–27

Jin Seo Cho, Jin Seok Park, Sang Woo Park

Abstract | PDF (247 kilobytes)

This study examines the mixture hypothesis of conditional geometric distributions using a likelihood ratio (LR) test statistic based on that used for unconditionalgeometricdistributions. Assuch,wederivethenulllimitdistribution of the LR test statistic and examine its power performance. In addition, we examine the interrelationship between the LR test statistics used to test the geometric and exponential mixture hypotheses. We also examine the performance of the LR test statistics under various conditions and confirm the main claims of the study using Monte Carlo simulations.

Economic Policies with Endogenous Entry and Exit of Plants, Pages 28–47

Yoonsoo Lee, Toshihiko Mukoyama

Abstract | PDF (166 kilobytes)

We build a general equilibrium model of industry dynamics and conduct policy experiments. The model is designed to match the entry and exit patterns in the U.S. manufacturing sector. We analyze two policies. First, we consider imposing a firing tax. Both a constant firing tax and a countercyclical firingtaxincreasethevolatilityoftheentryrateandaggregateoutput. Thisfindingcontrastswiththestabilizationeffectsoffiringtaxesinpreviousmodelswith exogenous entry and exit. Second, we consider subsidies to entry costs. Countercyclical entry subsidies stabilize the entry rate and are effective in stabilizing the aggregate output over the business cycle.

Bayesian Inference for Stochastic Copula Models, Pages 48–120

TaeHyung Kim, Jeongmin Park

Abstract | PDF (4835 kilobytes)

We proposes a new Bayesian MCMC algorithm for dynamic stochastic copula models with dependence parameters as unobserved state variables and presents the performance of the proposed MCMC algorithm through simulations. Our MCMC algorithm draws the state variables with an acceptancerejection Metropolis-Hastings algorithm using the candidate generating probability density function obtained by approximating the probability density function of the observed variables to the normal distribution of the dependence parameter.As an empirical example,weanalyzedthe stochasticcopulamodels for the KOSPI index and the HSCE index (Hang Seng China enterprise index) returnsfromJanuary3,2003toDecember30,2014usingtheproposedalgorithm. The Bayesian inference and model comparison results of the stochastic copula models of Gaussian copula, Student t-copula, Clayton copula, Frank copula, rotated Gumbel copula, and Plackett copula showed that Student t-copula model couldbeselectedasthebestmodel.Thesemodelcomparisonsresultsimplythat even though Gaussian stochastic copula model can capture near asymptotic dependence, there may exist extreme tail dependence that can not be captured by the Gaussian stochastic copula model.


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