Editorial
Herbert S. Buscher
Wirtschaft im Wandel,
No. 8,
2010
Abstract
Armut, absolute Armut, so wie wir sie von Bildern aus Entwicklungsländern kennen, dürfte in Europa eher die Ausnahme sein. Auch wenn absolute Armut bei uns kein existenzielles Problem ist, so drängt doch die zunehmende relative Verarmung seit einigen Jahren verstärkt in das öffentliche Bewusstsein. Relative Armut, oder genauer: das Armutsrisiko, betrifft weite Schichten der Bevölkerung, wobei bestimmte Gruppen diesem Risiko in erhöhtem Maße ausgesetzt sind. Zu diesen gehören u. a. geringqualifizierte Personen, Personen, die sich in einer prekären Beschäftigungssituation befinden, Alleinerziehende, Langzeitarbeitslose, Personen mit einem Migrationshintergrund und ältere Menschen. Kinderarmut und die Armut älterer Menschen werden hierbei als besonders problematisch angesehen: Armut bereits im frühen Alter verbaut systematisch Berufs- und Aufstiegschancen und damit potenzielle Einkommensquellen, die vor Armut schützen. Altersarmut wird als Demütigung empfunden, weil man sich trotz eines langen Erwerbslebens im Alter weniger Wünsche erfüllen kann und dies in diesem Lebensabschnitt kaum mehr auszugleichen vermag. Und es gibt eine wachsende Gruppe von Menschen, deren Einkommen bereits heute so niedrig ist, dass es durch staatliche Transfers angehoben werden muss. Zwar wird gegenwärtig das Armutsproblem gelöst, aber künftig wird aufgrund niedriger Einkommen bei vielen eine ausreichende Altersvorsorge schwierig, sodass hier ein hohes Risiko zukünftiger Altersarmut besteht.
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Challenges for Future Regional Policy in East Germany. Does East Germany really show Characteristics of Mezzogiorno?
Mirko Titze
A. Kuklinski; E. Malak-Petlicka; P. Zuber (eds), Souther Italy – Eastern Germany – Eastern Poland. The Triple Mezzogiorno? Ministry of Regional Development,
2010
Abstract
Despite extensive government support the gap between East and West Germany has still not been successfully closed nearly 20 years post German unification. Hence, some economists tend to compare East Germany with Mezzogiorno – underdeveloped Southern Italy. East Germany is still subject to sever structural problems in comparison to West Germany: lower per capita income, lower productivity, higher unemployment rates, fewer firm headquarters and fewer innovation activities. There are East German regions with less than desirable rates of development. Nevertheless, the new federal states have shown some evidence of a convergence process. Some regions have developed very positively – they have improved their competitiveness and employment levels. As such, the comparison of East Germany with Mezzogiorno does not seem applicable today.
According to Neoclassical Growth Theory, regional policy is targeted enhancing investment (hereafter the notion ‘investment policy’ is used). has been the most important instrument in forcing the ‘reconstruction of the East’. Overall, the investment policy is seen as having been successful. It is not, however, the only factor influencing regional development – political policy makers noted in the mid 1990s that research and development (R&D) activities and regional concentrated production networks, amongst other factors, may also play a part. The investment policy instrument has therefore been adjusted. Nevertheless, it cannot be excluded that investment policy may fail in particular cases because it contains potentially conflicting targets. A ‘better road’ for future regional policy may lie in the support of regional production and innovation networks – the so-called industrial clusters. These clusters would need to be exactingly identified however to ensure effective and efficient cluster policies.
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Old Age Poverty – Causes and a Projection for 2023
Ingmar Kumpmann, Michael Gühne, Herbert S. Buscher
Abstract
Verschiedene Faktoren bewirken eine Zunahme der Altersarmut in Deutschland, insbesondere in Ostdeutschland. Mit Daten des Sozio-oekonomischen Panel (SOEP) untersuchen wir Ursachen und Ausmaß der Altersarmut in Deutschland. Wir beginnen mit einer Querschnittsregression zur Bestimmung der Einflussfaktoren der Alterseinkommen. Im zweiten Schritt nehmen wir eine Projektion der Einkommen der 50- bis 55-Jährigen des Jahres 2008 für das Jahr 2023 vor. Dabei berücksichtigen wir sämtliche Einkommensarten, einschließlich verschiedener Formen von Kapitaleinkünften und des Wohnwerts selbst genutzten Wohneigentums. Es zeigt sich, dass, verglichen mit der heutigen alten Generation, vor allem in Ostdeutschland das Armutsrisiko steigt. Dies ist auf den Wandel der Erwerbsbiografien in der Folge der deutschen Vereinigung zurückzuführen.
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Evaluating the German (New Keynesian) Phillips Curve
Rolf Scheufele
North American Journal of Economics and Finance,
2010
Abstract
This paper evaluates the New Keynesian Phillips curve (NKPC) and its hybrid variant within a limited information framework for Germany. The main interest resides in the average frequency of price re-optimization by firms. We use the labor income share as the driving variable and consider a source of real rigidity by allowing for a fixed firm-specific capital stock. A GMM estimation strategy is employed as well as an identification robust method based on the Anderson–Rubin statistic. We find that the German Phillips curve is purely forward-looking. Moreover, our point estimates are consistent with the view that firms re-optimize prices every 2–3 quarters. These estimates seem plausible from an economic point of view. But the uncertainties around these estimates are very large and also consistent with perfect nominal price rigidity, where firms never re-optimize prices. This analysis also offers some explanation as to why previous results for the German NKPC based on GMM differ considerably. First, standard GMM results are very sensitive to the way in which orthogonality conditions are formulated. Further, model mis-specifications may be left undetected by conventional J tests. This analysis points out the need for identification robust methods to get reliable estimates for the NKPC.
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Stochastic Income Statement Planning and Emissions Trading
Henry Dannenberg, Wilfried Ehrenfeld
Abstract
Since the introduction of the European CO2 emissions trading system (EU ETS), the
development of CO2 allowance prices is a new risk factor for enterprises taking part in this system. In this paper, we analyze how risk emerging from emissions trading can be considered in the stochastic profit and loss planning of corporations. Therefore we explore which planned figures are affected by emissions trading. Moreover, we show a way to model these positions in a planned profit and loss account accounting for uncertainties and dependencies. Consequently, this model provides a basis for risk assessment and investment decisions in the uncertain environment of CO2 emissions trading.
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Openness and Income Disparities: Does Trade Explain The 'Mezzogiorno' Effect?
Claudia M. Buch, P. Monti
Review of World Economics,
No. 4,
2010
Abstract
We use Italian regional data to answer the question whether trade affects within-country income differentials. In Italy, the more affluent Northern regions trade more with the rest of the world than the poorer ones in the Southern “Mezzogiorno” regions. Prima facie, there is a positive correlation between external trade and per capita income. Studying this relationship empirically requires taking into account the endogenous component of trade. We argue that panel cointegration models can complement instrumental variables techniques to account for the endogeneity of trade in a panel context. Both methods show a positive link between trade openness and the level of income per capita.
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Openness and Growth: The Long Shadow of the Berlin Wall
Claudia M. Buch, Farid Toubal
Journal of Macroeconomics,
No. 3,
2009
Abstract
The question whether international openness causes higher domestic growth has been subject to intense discussions in the empirical growth literature. This paper addresses the issue in the context of the fall of the Berlin Wall in 1989. We analyze whether the slow convergence in per capita incomes between East and West Germany and the lower international openness of East Germany are linked. We address the endogeneity of openness by adapting the methodology proposed by Frankel and Romer (1999) to a panel framework. We instrument openness with time-invariant exogenous geographic variables and time-varying exogenous policy variables. We also distinguish the impact of different channels of integration. Our paper has three main findings. First, geographic variables have a significant impact on regional openness. Second, controlling for geography, East German states are less integrated into international markets along all dimensions of integration considered. Third, the degree of openness for trade has a positive impact on regional income per capita.
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Low Skill but High Volatility?
Claudia M. Buch
CESifo Working Paper No. 2665,
2009
Abstract
Globalization may impose a double-burden on low-skilled workers. On the one hand, the relative supply of low-skilled labor increases. This suppresses wages of low-skilled workers and/or increases their unemployment rates. On the other hand, low-skilled workers typically face more limited access to financial markets than high-skilled workers. This limits their ability to smooth shocks to income intertemporally and to share risks across borders. Using cross-country, industry-level data for the years 1970 - 2004, we document how the volatility of hours worked and of wages of workers at different skill levels has changed over time. We develop a stylized theoretical model that is consistent with the empirical evidence, and we test the predictions of the model. Our results show that greater financial globalization and development increases the volatility of employment, and this effect is strongest for low-skilled workers. A higher share of low-skilled employment has a dampening impact.
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Trade's Impact on the Labor Share: Evidence from German and Italian Regions
Claudia M. Buch
IAW Discussion Paper No. 46,
2008
Abstract
Has the labor share declined? And what is the impact of international trade? These
questions are not only relevant in an international context they also matter for
understanding the regional distribution of incomes in a given country. In this
paper, we study two regions with trade exposures that differ from the rest of the
country, and which display distinct changes in the labor share. East German and
Southern Italian regions have a degree of international openness which is below
the countries’ averages. At the same time, there has been a more pronounced
decline in the labor share in East Germany than in West Germany. In Southern
Italy, the labor share has increased in recent years. We show that increased trade
openness is not the main culprit behind changing labor shares.
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