{"title":"Orthogonal Transformation of Coordinates in Copula M-GARCH Models - Bayesian Analysis for WIG20 Spot and Futures Returns","authors":"Mateusz Pipień","doi":"10.2139/ssrn.2264084","DOIUrl":"https://doi.org/10.2139/ssrn.2264084","url":null,"abstract":"We check the empirical importance of some generalisations of the conditional distribution in M-GARCH case. A copula M-GARCH model with coordinate free conditional distribution is considered, as a continuation of research concerning specification of the conditional distribution in multivariate volatility models, see Pipien (2007) and (2010). The main advantage of the proposed family of probability distributions is that the coordinate axes, along which heavy tails and symmetry can be modelled, are subject to statistical inference. Along a set of specified coordinates both, linear and nonlinear dependence can be expressed in a decomposed form. In the empirical part of the paper we considered a problem of modelling the dynamics of the returns on the spot and future quotations of the WIG20 index from the Warsaw Stock Exchange. On the basis of the posterior odds ratio we checked the data support of considered generalisation, comparing it with BEKK model with the conditional distribution simply constructed as a product of the univariate skewed components. Our example clearly showed the empirical importance of the proposed class of the coordinate free conditional distributions.","PeriodicalId":418701,"journal":{"name":"ERN: Time-Series Models (Single) (Topic)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134464614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nonparametric Specification Testing in Nonlinear and Nonstationary Time Series Models: Theory and Practice","authors":"Jia Chen, Jiti Gao, Degui Li, Zhengyan Lin","doi":"10.2139/ssrn.2235356","DOIUrl":"https://doi.org/10.2139/ssrn.2235356","url":null,"abstract":"In this paper, we consider some specification testing problems in nonlinear time series models with nonstationarity. We propose using a nonparametric kernel test for specifying whether the regression function is of a known parametric nonlinear form. The power function of the proposed nonparametric test is systematically studied and an asymptotic distribution of the test statistic is shown to depend on the asymptotic behavior of the so called \"distance function\" under a sequence of general semiparametric local alternatives. The asymptotic theory developed in this paper differs from existing work on nonparametric specification testing in the stationary time series case. In order to implement the proposed test in practice, a computer-intensive bootstrap simulation procedure is introduced and asymptotic approximations for both the size and power functions are established. Furthermore, the bandwidth involved in the test is selected by maximizing the power function while the size function is controlled by a significance level. Meanwhile, both simulated and real data examples are provided to illustrate the proposed theory and methodology.","PeriodicalId":418701,"journal":{"name":"ERN: Time-Series Models (Single) (Topic)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125589742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nonparametric HAC Estimation for Time Series Data with Missing Observations","authors":"D. Datta, Wenxin Du","doi":"10.2139/ssrn.2180964","DOIUrl":"https://doi.org/10.2139/ssrn.2180964","url":null,"abstract":"The Newey and West (1987) estimator has become the standard way to estimate a heteroskedasticity and autocorrelation consistent (HAC) covariance matrix, but it does not immediately apply to time series with missing observations. We demonstrate that the intuitive approach to estimate the true spectrum of the underlying process using only the observed data leads to incorrect inference. Instead, we propose two simple consistent HAC estimators for time series with missing data. First, we develop the Amplitude Modulated estimator by applying the Newey-West estimator and treating the missing observations as non-serially correlated. Secondly, we develop the Equal Spacing estimator by applying the Newey-West estimator to the series formed by treating the data as equally spaced. We show asymptotic consistency of both estimators for inference purposes and discuss finite sample variance and bias tradeoff. In Monte Carlo simulations, we demonstrate that the Equal Spacing estimator is preferred in most cases due to its lower bias, while the Amplitude Modulated estimator is preferred for small sample size and low autocorrelation due to its lower variance.","PeriodicalId":418701,"journal":{"name":"ERN: Time-Series Models (Single) (Topic)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126084680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Finite Sample Mean Square Error of Forecast for the Difference Stationary and the Trend Stationary Processes.","authors":"Naresh C. Mallick","doi":"10.2139/ssrn.2144876","DOIUrl":"https://doi.org/10.2139/ssrn.2144876","url":null,"abstract":"This paper derives expressions for the finite sample exact mean square errors (MSEs) of forecast and for their bounds for the difference stationary (DSP) and the trend stationary (TSP) data generating processes with parameters certainty and uncertainty when the shock sequences follow infinite order moving averages.","PeriodicalId":418701,"journal":{"name":"ERN: Time-Series Models (Single) (Topic)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114641963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Chinese Real Estate Market Performance: Stock Market Linkages, Liquidity Pressures, and Inflationary Effects","authors":"R. Burdekin, R. Tao","doi":"10.2139/ssrn.2143240","DOIUrl":"https://doi.org/10.2139/ssrn.2143240","url":null,"abstract":"The 2009 surge in bank lending in China was accompanied by allegations of substantial funds being funneled into the nation's stock and property markets. This paper uses 1999-2011 data to examine the possible linkages between lending activity, real estate prices, stock prices and inflation. We find empirical support for housing prices responding to increases in liquidity and lending rates along with evidence of co-determination of stock prices and housing prices. House price inflation also appears to consistently impact the overall inflation rate in China based on both causality testing and VAR estimation.","PeriodicalId":418701,"journal":{"name":"ERN: Time-Series Models (Single) (Topic)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133659829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Competitive Balance: Time Series Lessons from the English Premier League","authors":"Y. H. Lee, R. Fort","doi":"10.1111/j.1467-9485.2012.00580.x","DOIUrl":"https://doi.org/10.1111/j.1467-9485.2012.00580.x","url":null,"abstract":"Structural break points in the First Division/English Premier League time series of competitive balance identify an Early Period, a Pre-World War II Period, a Post-War Period, and a Modern Period. The Early Period corresponds to technology diffusion (defense and tactics) along with important economic structural imposition by leagues. The war periods are common to many time series. The Modern Periodi¯s sharp decline in balance corresponds to the newest version of the Champions League in 1994/1995, increased revenue inequality, and the Bosman Ruling of 1995. Suggestions for future research are many.","PeriodicalId":418701,"journal":{"name":"ERN: Time-Series Models (Single) (Topic)","volume":"87 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114232955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Structural Policies and Growth: Time Series Evidence from a Natural Experiment","authors":"T. Eicher, Till Schreiber","doi":"10.2139/ssrn.2054967","DOIUrl":"https://doi.org/10.2139/ssrn.2054967","url":null,"abstract":"Documenting the long term impact of structural policies on economic performance has generated tremendous interest in the development literature. In contrast, contemporary effects of structural policies are difficult to establish. Structural policies seldom change sufficiently in the short run, and accepted instruments to control for endogeneity in cross sections are inappropriate for time series analysis. In this paper we utilize an eleven year panel of 26 transition countries to identify short term effects of structural policies that are large and significant. A ten percent change in the quality of structural policies (or the Rule of Law) towards OECD standards is shown to raise annual growth by about 2.5 percent. To control for endogeneity, we instrument using the hierarchy of institutions hypothesis and find that it holds robust explanatory power. We also document that early reformers reap the greatest benefits, but that it is never too late to begin structural policy reforms.","PeriodicalId":418701,"journal":{"name":"ERN: Time-Series Models (Single) (Topic)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125390887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Market Integration, Efficiency, and Interconnectors: The Irish Single Electricity Market","authors":"Rabindra Nepal, T. Jamasb","doi":"10.2139/ssrn.2025628","DOIUrl":"https://doi.org/10.2139/ssrn.2025628","url":null,"abstract":"Interconnections can be an effective way to increase competition in wholesale electricity markets in particular for smaller markets with few actors. This paper quantitatively examines the potentials for interconnections in the Irish Single Electricity Market (SEM). We use a time-varying Kalman filter technique to assess the degree of market integration between SEM and other large, mature and interconnected wholesale electricity markets in Europe. The results indicate a low degree of market integration between SEM and other European markets and thereby raising the possibility to benefit from increased electricity trade. As wholesale prices in SEM remain relatively high and volatile; a larger interconnector capacity can promote competition, close the gap with the European wholesale prices, improve security of supply, and mitigate price volatility. The results indicate that wholesale spot trading of renewable may not increase market integration. The results suggest that an interconnector capacity amounting to about 21% of generation capacity in SEM is likely to achieve an integration coefficient of 0.86 similar to what currently exists between the markets in Austria and the Netherlands.","PeriodicalId":418701,"journal":{"name":"ERN: Time-Series Models (Single) (Topic)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129652203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sieve Inference on Semi-Nonparametric Time Series Models","authors":"Xiaohong Chen, Z. Liao, Yixiao Sun","doi":"10.2139/ssrn.2008720","DOIUrl":"https://doi.org/10.2139/ssrn.2008720","url":null,"abstract":"The method of sieves has been widely used in estimating semiparametric and nonparametric models. In this paper, we first provide a general theory on the asymptotic normality of plug-in sieve M estimators of possibly irregular functionals of semi/nonparametric time series models. Next, we establish a surprising result that the asymptotic variances of plug-in sieve M estimators of irregular (i.e., slower than root-T estimable) functionals do not depend on temporal dependence. Nevertheless, ignoring the temporal dependence in small samples may not lead to accurate inference. We then propose an easy-to-compute and more accurate inference procedure based on a \"pre-asymptotic\" sieve variance estimator that captures temporal dependence. We construct a \"pre-asymptotic\" Wald statistic using an orthonormal series long run variance (OS-LRV) estimator. For sieve M estimators of both regular (i.e., root-T estimable) and irregular functionals, a scaled \"pre-asymptotic\" Wald statistic is asymptotically F distributed when the series number of terms in the OS-LRV estimator is held fixed. Simulations indicate that our scaled \"pre-asymptotic\" Wald test with F critical values has more accurate size in finite samples than the usual Wald test with chi-square critical values.","PeriodicalId":418701,"journal":{"name":"ERN: Time-Series Models (Single) (Topic)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126677091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Máximo Camacho, Gabriel Pérez-Quirós, Pilar Poncela
{"title":"Extracting Non-Linear Signals from Several Economic Indicators","authors":"Máximo Camacho, Gabriel Pérez-Quirós, Pilar Poncela","doi":"10.2139/ssrn.2000676","DOIUrl":"https://doi.org/10.2139/ssrn.2000676","url":null,"abstract":"We develop a twofold analysis of how the information provided by several economic indicators can be used in Markov-switching dynamic factor models to identify the business cycle turning points. First, we compare the performance of a fully non-linear multivariate specification (one-step approach) with the “shortcut” of using a linear factor model to obtain a coincident indicator which is then used to compute the Markov-switching probabilities (two-step approach). Second, we examine the role of increasing the number of indicators. Our results suggest that one step is generally preferred to two steps, although its marginal gains diminish as the quality of the indicators increases and as more indicators are used to identify the non-linear signal. Using the four constituent series of the Stock-Watson coincident index, we illustrate these results for US data.","PeriodicalId":418701,"journal":{"name":"ERN: Time-Series Models (Single) (Topic)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127390376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}