IWH-Flash-Indikator III. Quartal und IV. Quartal 2019
Katja Heinisch
IWH Flash Indicator,
No. 3,
2019
Abstract
Die deutsche Wirtschaft schrumpfte im zweiten Quartal 2019 um 0,1%, nachdem das Bruttoinlandsprodukt zu Jahresbeginn noch um 0,4% zugelegt hatte. Der aktuelle IWH-Flash-Indikator deutet darauf hin, dass die Konjunktur auch in den kommenden beiden Quartalen schwach bleiben wird. So dürfte die Wirtschaft im dritten Quartal 2019 stagnieren, für das vierte Quartal kann ein kleines Plus von 0,2% erwartet werden.
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Urban Occupational Structures as Information Networks: The Effect on Network Density of Increasing Number of Occupations
Shade T. Shutters, José Lobo, Rachata Muneepeerakul, Deborah Strumsky, Charlotta Mellander, Matthias Brachert, Teresa Farinha, Luis M. A. Bettencourt
Plos One,
forthcoming
Abstract
Urban economies are composed of diverse activities, embodied in labor occupations, which depend on one another to produce goods and services. Yet little is known about how the nature and intensity of these interdependences change as cities increase in population size and economic complexity. Understanding the relationship between occupational interdependencies and the number of occupations defining an urban economy is relevant because interdependence within a networked system has implications for system resilience and for how easily can the structure of the network be modified. Here, we represent the interdependencies among occupations in a city as a non-spatial information network, where the strengths of interdependence between pairs of occupations determine the strengths of the links in the network. Using those quantified link strengths we calculate a single metric of interdependence–or connectedness–which is equivalent to the density of a city’s weighted occupational network. We then examine urban systems in six industrialized countries, analyzing how the density of urban occupational networks changes with network size, measured as the number of unique occupations present in an urban workforce. We find that in all six countries, density, or economic interdependence, increases superlinearly with the number of distinct occupations. Because connections among occupations represent flows of information, we provide evidence that connectivity scales superlinearly with network size in information networks.
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Flight from Safety: How a Change to the Deposit Insurance Limit Affects Households‘ Portfolio Allocation
H. Evren Damar, Reint E. Gropp, Adi Mordel
IWH Discussion Papers,
No. 19,
2019
Abstract
We study how an increase to the deposit insurance limit affects households‘ portfolio allocation by exogenously reducing uninsured deposit balances. Using unique data that identifies insured versus uninsured deposits, along with detailed information on Canadian households‘ portfolio holdings, we show that households respond by drawing down deposits and shifting towards mutual funds and stocks. These outflows amount to 2.8% of outstanding bank deposits. The empirical evidence, consistent with a standard portfolio choice model that is modified to accommodate uninsured deposits, indicates that more generous deposit insurance coverage results in nontrivial adjustments to household portfolios.
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Pricing Sin Stocks: Ethical Preference vs. Risk Aversion
Stefano Colonnello, Giuliano Curatola, Alessandro Gioffré
Abstract
We develop a model that reproduces the return and volatility spread between sin and non-sin stocks, where investors trade off dividends with the ethical assessment of companies. We relax the assumption of boycott behaviour and investigate the role played by the dividend share of sin stocks on their return and volatility spread relative to non-sin stocks. We empirically show that the dividend share predicts a positive return and volatility spread. This pattern is reproduced by our model when dividends and ethicalness are complementary goods and investors are sufficiently risk averse.
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20.06.2019 • 13/2019
Presseeinladung zum Workshop: „Das andere Bauhaus-Erbe: Leben in den Plattenbausiedlungen Sachsen-Anhalts heute“ am 1. Juli 2019 in Halle (Saale)
Das Bauhaus-Jubiläum verlangt nach einer Auseinandersetzung mit den ambivalenten Folgen des Neuen Bauens. Mit welchen Herausforderungen sind Plattenbausiedlungen heute konfrontiert, welche Chancen bieten sich? Darüber diskutiert eine Veranstaltung der Expertenplattform Demographischer Wandel in Sachsen-Anhalt in Zusammenarbeit mit dem Leibniz-Institut für Wirtschaftsforschung Halle (IWH). Diesen Fragen widmet sich auch der Vortrag von Sachsen-Anhalts Ministerpräsident Dr. Reiner Haseloff.
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Spatial Development Patterns in East Germany and the Policy to Maintain “Industrial Cores”
Gerhard Heimpold
H.-G. Jeong, G. Heimpold (Hrsg.), Economic Development after German Unification and Implications for Korea. Policy References 18-08. Sejong: Korea Institute for International Economic Policy,
2018
Abstract
This paper investigates the intra-regional development patterns in East Germany with particular reference to the manufacturing sector. When East Germany’s economy was ruled by the central planning regime, the share of industrial workforce in total employment was the greatest in entire Europe. It exceeded the respective value in the Soviet Union at that time. When the transition from a centrally planned economy to a market economy occurred, the East German manufacturing sector faced the greatest challenges.
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