Panel Seasonal Unit Root Test: Further Simulation Results and An Application to Unemployment Data
Christian Dreger, Hans-Eggert Reimers
AStA - Advances in Statistical Analysis,
No. 3,
2005
Abstract
In this paper the seasonal unit root test of Hylleberg et al. (1990) is generalized to cover a heterogenous panel. The procedure follows the work of Im, Pesaran and Shin (2002). Test statistics are proposed and critical values are obtained by simulations. Moreover, the properties of the tests are analyzed for different deterministic and dynamic specifications. Evidence is presented that for a small time dimension the power is slow even for increasing cross section dimension. Therefore, it seems necessary to have a higher time dimension than cross section dimension. The new test is applied for unemployment behaviour in industrialized countries. In some cases seasonal unit roots are detected. However, the null hypotheses of panel seasonal unit roots are rejected. The null hypothesis of a unit root at the zero frequency is not rejected, thereby supporting the presence of hysteresis effects.
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Non-take-up Behavior of Social Assistance in Germany - An Empirical Investigation of Unexpected Reactions
Joachim Wilde, Alexander Kubis
Jahrbücher für Nationalökonomie und Statistik,
No. 3,
2005
Abstract
Concerning German social assistance earlier studies calculate a non-take-up rate of more than 50 percent. This contradicts intuition. Using data from the low-income panel we estimate eligibility and non-take-up rate more precisely. However, avoiding simulation errors of earlier studies reduces the rate only slightly. Therefore, we estimate a multiple probit model to explain the nontake- up behavior. Significant reasons are low claims, stigma and the expectation of a short life of eligibility. Additionally, we show a significant simultaneous relation between earned income and the tendency to participate in social assistance. The sign is negative in both directions.
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Factors accounting for the enactment of a competition law – an empirical analysis
Franz Kronthaler, Johannes Stephan
One-off Publications,
No. 6,
2005
Abstract
The paper is concerned with the factors that account for decisions to enact a national competition law. In a first step, the paper updates and enlarges the existing data bases of countries that have enacted a competition law. The paper then identifies and discusses possible factors that influence the decision to enact a competition law. In a third step, the method of panel-data logit analysis is employed to test a set of hypothesis pertaining to the factors across the time dimension and across countries. The results of this analysis are interpreted in terms of significance and in terms of the sign of their influence on the probability of a country to enact. Given generality of the analysis, the results can shed light on the probability of individual countries, and in particular developing countries, to actually take the step of enactment.
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Health care expenditures in OECD countries. A panel unit root and cointegration analysis
Christian Dreger, Hans-Eggert Reimers
External Publications,
2005
Abstract
Im Papier wird der Zusammenhang zwischen Gesundheitsausgaben und Bruttoinlandsprodukt mit panelökonometrischen Verfahren für 21 OECD Länder untersucht. Im Gegensatz zu anderen Studien werden alternative Indikatoren des medizinisch-technischen Fortschritts einbezogen (Lebenserwartung, Kindersterblichkeit, Anteil älterer Menschen). Durch die Erweiterung des Modells mit diesen Indikatoren ergibt sich eine Einkommenselastizität der Gesundheitsausgaben von 1. Gesundheit kann daher nicht als Luxusgut angesehen werden: nachdem für den medizoinisch-technischen Fortschritt kontrolliert wird, entwickeln sich die Gesundheitsausgaben proportional zum Einkommen.
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Eastern Germany in the process of catching-up: the role of foreign and Western German investors in technological renewal
Jutta Günther, Oliver Gebhardt
Eastern European Economics,
No. 3,
2005
Abstract
Foreign direct investment as a means to support system transformation and the ongoing process of catching-up development has caught researcher’s attention for a number of Central and Eastern European countries. Not much research, however, has been carried out for East Germany in this respect although FDI plays an important role in East Germany too. Descriptive analysis by the use of unique survey data shows that foreign and West German affiliates perform much better with respect to technological capability and labor productivity than domestic companies in East Germany. The results of the regression analysis, however, show that it is not the status of ownership as such that forms a significant determinant of innovativeness in East Germany but rather general firms specific characteristics attached to it such as firm size, export-intensity, technical state of the equipment, and R&D activities. Due to the fact that foreign and West German affiliates perform better with respect to exactly all of these characteristics, they can be considered as a means to support the process of technological renewal and economic development.
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Determinants and Effects of Foreign Direct Investment: Evidence from German Firm-Level Data
Claudia M. Buch, J. Kleinert, A. Lipponer
Economic Policy,
No. 41,
2005
Abstract
Foreign direct investment is an essential aspect of ‘globalization’ yet its empirical determinants are not well understood. What we do know is based either on poor data for a wide range of nations, or good data for the US and Swedish cases. In this paper, we provide evidence on the determinants of the activities of German multinational firms by using a newly available firm-level data set from the Deutsche Bundesbank. The specific goal of this paper is to demonstrate the relative role of country-level and firm-level determinants of foreign direct investment. We focus on three main questions: First, what are the main driving forces of German firms’ multinational activities? Second, is there evidence that sector-level and firm-level factors shape internationalization patterns? Third, is there evidence of agglomeration effects in the foreign activities of German firms? We find that the market access motive for internationalization dominates. Firms move abroad mainly to gain better access to large foreign markets. Cost-saving motives, however, are important for some manufacturing sectors. Our results strongly suggest that firm-level heterogeneity has an important influence on internationalization patterns – as stressed by recent models of international trade. We also find positive agglomeration effects for the activities of German firms that stem from the number of other German firms that are active on a given foreign market. In terms of lessons for economic policy, our results show that lowering barriers to the integration of markets and encouraging the formation of human capital can promote the activities of multinational firms. However, our results related to the heterogeneity of firms and agglomeration tendencies show that it might be difficult to fine-tune policies directed at the exploitation of synergies and at the creation of clusters of foreign firms.
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Cross-border Banking and Transmission Mechanisms in Europe: Evidence from German Data
Claudia M. Buch
Applied Financial Economics,
No. 16,
2004
Abstract
International activities of commercial banks play a potential role for the transmission of shocks across countries. This paper presents stylized facts of the integration of European banking markets and analyses the potential of banks to transmit shocks across countries. Although the openness of banking systems has increased, bilateral financial linkages among EU countries are relatively small. The exceptions are claims of German banks on a number of smaller countries. These data are used for an analysis of the determinants of cross-border lending patterns.
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Flexible utilization of labor strengthens industrial enterprises´ ability to adapt to fluctuations in business - an empirical east-west comparison based on the IAB company panel
Brigitte Loose, Udo Ludwig
Wirtschaft im Wandel,
No. 12,
2004
Abstract
Based on an individual data set, this article investigates the question of which conventional methods and new instruments companies use to adapt to fluctuations in business and what distinguishes these companies from other ones which have not implemented such instruments. In particular, the role of the technical equipment as well as the personnel policy and tariff policy are analyzed. An empirical comparison between the East and West German manufacturing industries demonstrates whether East German firms have competitive advantages. While the technological conditions for firms´ flexibility are somewhat less pronounced in East German, the proportion of “standardized“ and flexible employment is nearly the same in the East-West comparison. Differences exist among small, middle-sized and large firms as well as among types of yield. The weak orientation with respect to agreed wages and hours worked as well as the mainly gratuitous reduction of unpaid overtime which can be implemented over the whole year, prove to be an advantage. The investigation is based on a data set from the IAB company panel of manufacturing industries in 2003.
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Panel Seasonal Unit Root Test With An Application for Unemployment Data
Christian Dreger, Hans-Eggert Reimers
IWH Discussion Papers,
No. 191,
2004
Abstract
In this paper the seasonal unit root test of Hylleberg et al. (1990) is generalized to cover a heterogenous panel. The procedure follows the work of Im, Pesaran and Shin (2002). Test statistics are proposed and critical values are obtained by simulations. Moreover, the properties of the tests are analyzed for di®erent deterministic and dynamic specications. Evidence is presented that for a small time dimension the power is slow even for increasing cross section dimension. Therefore, it seems necessary to have a higher time dimension than cross section dimension. The new test is applied for unemployment behaviour in
industrialized countries. In some cases seasonal unit roots are detected. However, the null hypotheses of panel seasonal unit roots are rejected. The null hypothesis of a unit root at the zero frequency is not rejected, thereby supporting the presence of hysteresis effects.
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Technological capability of foreign and West German investors in East Germany
Jutta Günther
IWH Discussion Papers,
No. 189,
2004
Abstract
Foreign direct investment (FDI) plays an important role for countries or regions in the process of economic catching-up since it is assumed – among other things – that FDI brings in new production technology and knowledge. This paper gives an overview about the development of FDI in East Germany based on official data provided by the Federal Bank of Germany. The investigation also includes a comparison of FDI in East Germany to Central East European countries. But the main focus of the paper is an analysis of the technological capability comparing majority foreign and West German owned firms to majority East German owned firms. It shows that foreign and West German subsidiaries in East Germany are indeed characterized by superior technological capability with respect to all indicators looked at (product innovation, research & development, organizational changes etc.).
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