Climate policies do not operate in isolation but propagate through global production networks, affecting industries beyond national borders. This paper combines international input-output data with a granular instrumental variable approach to capture how foreign regulations transmit through upstream and downstream linkages. Distinguishing between market-based policies, non-market regulations, and technology support, the analysis shows that foreign climate policies can enhance domestic productivity, with effects shaped by industry characteristics and operating through technological adjustment along supply chains. The results underscore the importance of accounting for international spillovers when evaluating the economic impact of environmental regulation.

We study the implications of forging stronger political ties with the US on the sensitivities of stock returns around the world to a global common factor – the global financial cycle. Using voting patterns at the United Nations as a measure of political ties with the US along with various measures of the global financial cycle, we document evidence indicating that stronger political ties with the US amplify the sensitivities of stock returns in developing countries to the global financial cycle. We explore several channels and find that a deepening of financial linkages along with a reduction in information asymmetries and an amplification of sentiment are potentially important factors behind this result.

In accordance with its statutes, the Halle Institute for Economic Research (IWH) pursues an intensive bilateral knowledge transfer on the basis of excellent scientific research with its partners in the non-academic community. In so doing, the IWH contributes to better informed decision making on a societal level. The overarching goal is to foster mutually beneficial exchanges that involve the provision of evidence-based knowledge to society (transfer from the academic to the non-academic community) and the integration of questions of public interest into its research agenda (transfer from the non-academic to the academic community).

Containment measures of COVID-19 have generated a chain of supply and demand shocks around the globe with heterogeneous fallout across industries and countries. We quantify their transmission via foreign trade with a focus on the euro area where deep firms integration within regional supply chains and strong demand linkages act as a magnification mechanism. We estimate that spillover effects in the euro area from suppression measures in one of the five main euro area countries range between 15-28% the size of the original shock; negative foreign demand shocks depress euro area aggregate activity by about a fifth the size of the external shock and a fourth of the total effect is due to indirect propagation through euro area supply chain. Last, reopening to regional tourism softened the contraction of aggregate activity due to travel and tourism bans by about a third in the euro area. Our findings suggest that enhanced coordination of recovery plans would magnify their beneficial effects.

This paper investigates the propagation of technology news shocks within and across industrialised economies. We construct quarterly utilisation-adjusted total factor productivity (TFP) for thirteen OECD countries. Based on country-specific structural vector autoregressions (VARs), we document that (i) the identified technology news shocks induce a quite homogeneous response pattern of key macroeconomic variables in each country; and (ii) the identified technology news shock processes display a significant degree of correlation across several countries. Contrary to conventional wisdom, we find that the US are only one of many different sources of technological innovations diffusing across advanced economies. Technology news propagate through the endogenous reaction of monetary policy and via trade-related variables. That is, our results imply that financial markets and trade are key channels for the dissemination of technology.

Der wirtschaftliche Transformations- und Aufholprozess in Ostdeutschland seit 1990 hat sich gemäß verschiedenen Analysen und Publikationen nicht zuletzt des Leibniz-Instituts für Wirtschaftsforschung Halle in einer deutlichen Steigerung der Arbeitsproduktivität niedergeschlagen: Während in Ostdeutschland 1991 nur rund 45% des Bruttoinlandsprodukts Westdeutschlands pro Erwerbstätigen erwirtschaftet wurden, so stieg dieser Wert bis 2018 auf 83%. Die Erklärungen für diese noch immer bestehende ostdeutsche „Produktivitätslücke“ sind multifaktoriell und werden etwa in fehlenden Headquarterfunktionen, der Betriebsstruktur mit wenigen Großbetrieben, der auf Arbeitsplätze fokussierten Investitionsförderung, siedlungsstrukturellen Unterschieden, einem zunehmenden Fachkräftemangel und nicht zuletzt niedrigeren Preisen für in Ostdeutschland produzierte Güter und Dienstleistungen gesucht. Folglich braucht es auch in vielen Wirtschafts- und Lebensbereichen und auf allen Ebenen Strategien und Maßnahmen. Während eine Angleichung der Unternehmensstrukturen hinsichtlich Branchen, Größenstrukturen oder Funktionen, wie etwa der Durchführung von Forschung und Entwicklung (FuE) in Ostdeutschland, sowohl mittels Unternehmensverlagerungen als auch Neugründungen von Unternehmen als Maßnahmen mit langfristiger Wirkung betrachtet werden, wurde und wird große Hoffnung in den öffentlichen Bildungs- und Forschungssektor und seinen Beitrag zu einer wissens- und technologiegestützten Entwicklung gesetzt.