2003
DOI: 10.1016/s0167-6296(02)00122-4
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Stationarity of health expenditures and GDP: evidence from panel unit root tests with heterogeneous structural breaks

Abstract: This paper re-examines the stationarity of national health care expenditures and GDP in a panel setting utilizing data from 20 OECD countries over the period from 1960 to 1997. Previous research in this area has recognized the drawback of not allowing for structural breaks in their unit root tests and noted that their empirical results may not be robust. We advance the literature by utilizing a recently developed panel LM unit root test that allows for heterogeneous level shifts. In contrast to previous analys… Show more

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Cited by 130 publications
(98 citation statements)
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References 23 publications
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“…However, the results reported in such studies may not be robust if the underlying data generating process (DGP) for the two series is characterised by structural changes (Freeman 2012). Therefore, some more recent papers allow for structural breaks when testing for cointegration (Jewel et al 2003;Narayan 2006;Wang and Rettenmaier 2007, among others). On the whole, the evidence is rather mixed.…”
Section: Literature Reviewmentioning
confidence: 99%
“…However, the results reported in such studies may not be robust if the underlying data generating process (DGP) for the two series is characterised by structural changes (Freeman 2012). Therefore, some more recent papers allow for structural breaks when testing for cointegration (Jewel et al 2003;Narayan 2006;Wang and Rettenmaier 2007, among others). On the whole, the evidence is rather mixed.…”
Section: Literature Reviewmentioning
confidence: 99%
“…But also, which of both actually influences life expectancy? [33][34][35][36]. There is however consensus that when analyzing health status, both should be included to avoid that the effect of both factors are merged [37][38][39].…”
Section: Variables and Modelsmentioning
confidence: 99%
“…Jewell et al (2003) control for contemporaneous correlation by introducing time-speci…c e¤ects in the econometric speci…cation. However, the inclusion of time-varying e¤ects implies that the common shocks have identical in ‡uences on each unit, an assumption that might be quite restrictive in empirical analysis.…”
Section: Cross Section Dependence In Health Expenditurementioning
confidence: 99%
“…On the contrary, McCoskey and Selden (1998) reject the null of non-stationarity for health care expenditures and GDP, though they observe that results change when a time trend is included in the augmented Dickey-Fuller equation. Jewell et al (2003) and Carrion-i-Silvestre (2005) conclude that health expenditure and GDP are stationary around one or two breaks. In general, major concern is expressed by several authors on how to deal with heterogeneity and cross section dependence, characteristics that are very likely to be present in health panel data, when testing for unit roots and cointegration (McCoskey and Selden, 1998; Roberts, 1999).…”
Section: Introductionmentioning
confidence: 99%