Die zurückliegenden Jahrzehnte waren weltweit durch eine erhebliche Ausweitung der internationalen Handelsströme, nicht nur absolut, sondern auch in Relation zum Welt-BIP, gekennzeichnet. Dies ist zu einem Großteil auf den zunehmenden bilateralen Handel mit Vor- und Zwischenprodukten als Folge der internationalen Fragmentierung der Produktion zurückzuführen. Offensichtlich hat der im Laufe der Zeit zunehmende internationale Wettbewerbsdruck, insbesondere seitens der südostasiatischen und der mittel- und osteuropäischen Länder, die Unternehmen in Hochlohnländern veranlasst, internationale Unterschiede in den Faktorpreisen, vor allem in den Arbeitskosten, zur Steigerung ihrer preislichen Wettbewerbsfähigkeit auszunutzen. Allerdings wird die Verlagerung von Teilelementen der Wertschöpfungsketten ins Ausland aus theoretischer Sicht, neben Faktorpreisunterschieden, von einer Vielzahl weiterer Faktoren bestimmt. Vor diesem Hintergrund veranschaulicht der vorliegende Artikel auf der Basis bilateraler Daten zum Außenhandel mit Vor- und Zwischenprodukten das Ausmaß der internationalen Fragmentierung der Produktion in der Europäischen Union. Zudem werden im Rahmen einer Paneldaten-Analyse die wesentlichen erklärenden Größen der vertikalen Aufspaltung von Wertschöpfungsketten bestimmt. Die Ergebnisse zeigen, dass internationale Unterschiede in den Arbeitskosten zwar ein wesentlicher, aber dennoch nur ein erklärender Faktor unter vielen sind.

This paper examines which emerging market regions form optimum currency areas (OCAs) by assessing the symmetry of macroeconomic shocks. We extend the output-prices-VAR framework by adding net exports and the real effective exchange rate as endogenous variables. Based on theoretical considerations, we derive which shocks affect these variables in the long run: shocks to labor productivity, foreign trade, labor supply, and money supply. The considered economies of Central and Eastern Europe, the Commonwealth of Independent States, East and Southeast Asia, and South Asia, exhibit large enough shock symmetry to form a currency union; the economies of Africa, Latin America, and the Middle East do not.

Seit der Gründung der Europäischen Wirtschafts- und Währungsunion hat sich am Problem der hohen Arbeitslosigkeit in der Eurozone wenig geändert. Der überwiegenden Sichtweise zufolge ist dies vor allem auf dysfunktionale Arbeitsmärkte zurückzuführen. In diesem Beitrag gehen wir der Frage nach, welche Änderungen sich ergeben können, wenn Gewerkschaften und Zentralbank in einem Klima der Unsicherheit zwischen verschiedenen Optionen wählen können. Das wahrscheinlichste Ergebnis im einstufigen Spiel ist eine hohe Arbeitslosenquote. Bei einer Wiederholung des Spiels können sich die Ergebnisse deutlich ändern. Dies wird allerdings dann unwahrscheinlich, wenn die Zentralbank ein außerordentlich hohes Gewicht auf Preisstabilität legt. Zweitens erfordert ein Vollbeschäftigungs-Gleichgewicht ein Mindestmaß an Kooperationsbereitschaft bzw. Koordinierungspotential auf Seiten der Gewerkschaften.

In the European Monetary Union the transnational coordination of collective wage bargaining has acquired increased importance on the trade union agenda. The metal sector has been at the forefront of these developments. This paper addresses the issue of crossborder coordination of wage setting in the metal sector in the central western European region, that is, in Germany, the Netherlands and Belgium, where coordination practices have become firmly established in comparison to other sectors. When testing the interaction of wage developments in the metal sector of these three countries, relevant macroeconomic (inflation and labour productivity) and sector-related variables (employment, export-dependence) are considered with reference to the wage policy guidelines of the European Commission and the European Metalworkers’ Federation. Empirical evidence can be found for a wage coordination effect in the form of increasing compliance with the wage policy guidelines of the European Metalworkers’ Federation. The evidence for compliance with the stability-oriented wage guideline of the European Commission is weaker.

Our study tries to find out whether wage dynamics between Euro member countries became more synchronized through the adoption of the common currency. We calculate bivarate correlation coefficients of wage and wage cost dynamics and run a model of endogenously induced changes of coefficients, which are explained by other variables being also endogenous: trade intensity, sectoral specialization, financial integration. We used a panel data structure to allow for cross-section weights for country-pair observations. We use instrumental variable regressions in order to disentangle exogenous from endogenous influences. We applied these techniques to real and nominal wage dynamics and to dynamics of unit labor costs. We found evidence for persistent asymmetries in nominal wage formation despite a single currency and monetary policy, responsible for diverging unit labor costs and for emerging trade imbalances among the EMU member countries.

Weakening bargaining power of unions and the increasing integration of the world economy may affect the volatility of capital and labor incomes. This paper documents and explains changes in income volatility. Using a theoretical framework which builds distribution risk into a real business cycle model, hypotheses on the determinants of the relative volatility of capital and labor are derived. The model is tested using industry-level data. The data cover 11 industrialized countries, 22 manufacturing and services industries, and a maximum of 35 years. The paper has four main findings. First, the unconditional volatility of labor and capital incomes has declined, reflecting the decline in macroeconomic volatility. Second, the idiosyncratic component of income volatility has hardly changed over time. Third, crosssectional heterogeneity in the evolution of relative income volatilities is substantial. If anything, the labor incomes of high- and low-skilled workers have become more volatile in relative terms. Fourth, income volatility is related to variables measuring the bargaining power of workers. Trade openness has no significant impact.

Das IWH beschäftigt sich mit den Auswirkungen des CO2-Handels auf die betroffenen Unternehmen. Die erste Periode des europäischen Emissionshandelssystems war als Lernphase konzipiert. In dieser wurden zwei Probleme deutlich: Das erste und offensichtlichste war die Überausstattung mit Zertifikaten. Die Anreize, in die Vermeidung von CO2 zu investieren, können somit eher als gering betrachtet werden. Das zweite ergab sich aus der vollständig kostenfreien Zuteilung. Während Stromkunden die finanzielle Hauptlast zu tragen hatten, profitierten die Stromerzeuger, da offensichtlich die Zertifikatepreise als Opportunitätskosten in den Strompreis einkalkuliert wurden.

Die Analyse führt zu der Erkenntnis, daß es richtig war, auf Ebene der Europäischen Union die Zertifikatemenge für die zweite Handelsperiode zu kürzen und in der deutschen Gesetzgebung den Verkauf bzw. die Versteigerung eines Teils der Zertifikate zu verankern. Weiter kann die Vereinfachung des Zuteilungsverfahrens in Deutschland als Fortschritt betrachtet werden.

What determines a country’s ability to compete in international markets? What fosters the global competitiveness of its firms? And in the European context, have key elements of the EU strategy such as EMU and enlargement helped or hindered domestic firms’ competitiveness in local and global markets? We address these questions by calibrating and simulating a conceptual framework that, based on Melitz and Ottaviano (2005), predicts that tougher and more transparent international competition forces less productive firms out the market, thereby increasing average productivity as well as reducing average prices and mark-ups. The model also predicts a parallel reduction of price dispersion within sectors. Our conceptual framework allows us to disentangle the effects of technology and freeness of entry from those of accessibility. On the one hand, by controlling for the impact of trade frictions, we are able to construct an index of ‘revealed competitiveness’, which would drive the relative performance of countries in an ideal world in which all faced the same barriers to international transactions. On the other hand, by focusing on the role of accessibility while keeping ‘revealed competitiveness’ as given, we are able to evaluate the impacts of EMU and enlargement on the competitiveness of European firms. We find that EMU positively affects the competitiveness of firms located in participating economies. Enlargement has, instead, two contrasting effects. It improves the accessibility of EU members but it also increases substantially the relative importance of unproductive competitors from Eastern Europe. JEL Classification: F12, R13.

The last decades were characterized by large increases in world trade, not only in absolute terms, but also in relation to world GDP. This was in large parts caused by increasing exchanges of parts and components between countries as a consequence of international fragmentation of production. Apparently, greater competition especially from the Newly Industrializing and Post-Communist Economies prompted firms in ‘high-wage’ countries to exploit international factor price differences in order to increase their international competitiveness. However, theory predicts that, beside factor price differences, vertical disintegration of production should be driven by a multitude of additional factors. Against this background, the present paper reveals empirical evidence on parts and components trade as an indicator for international fragmentation of production in the European Union. On the basis of a panel data approach, the main explanatory factors for international fragmentation of production are determined. The results show that, although their influence can not be neglected, factor price differences are only one out of many causes for shifting production to or sourcing components from foreign countries.

The paper analyses vertical intra-industry trade between EU and Accession countries, and concentrates on two country-specific determinants: Differences in personal income distribution and in technology. Both determinants have a strong link to national policies and to cross-border investment flows. In contrast to most other studies, income distribution is not seen as time-invariant variable, but as changing over time. What is new is also that differences in technology are tested in comparison with cost advantages from capital/labour ratios. The study applies panel estimation techniques with GLS. Results show country-pair fixed effects to be of high relevance for explaining vertical intraindustry trade. In addition, bilateral differences in personal income distribution and their changes are positive related to vertical intra-industry trade in this special regional integration framework; hence, distributional effects of policies matter. Also, technology differences turn out to be positively correlated with vertical intra-industry trade. However, the cost variable (here: relative GDP per capita) shows no clear picture, particularly not in combination with the technology variable.