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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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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Decision Making by the Treuhandanstalt on Privatization, Restructuring, or Liquidation of Former State-owned Firms in East Germany
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
Subject to this paper is the decision making by Treuhandanstalt on privatization, restructuring, or liquidation of former state-owned firms in East Germany. To explain: the Treuhandanstalt was the agency at the Federal level tasked with the privatization of the former state-owned firms of the GDR. All former state-owned firms were assigned to the Treuhandanstalt in mid-1990. The notion of Treuhand firms (“Treuhandfirmen”) will be used to characterize this type of firms.
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Monetary Policy Communication: Frameworks and Market Impact
Michael McMahon, Alfred Schipke, Xiang Li
A. Schipke, M. Rodlauer, L. Zhang (Hrsg.), The Future of China's Bond Market. Washington, D.C.: International Monetary Fund,
forthcoming
Abstract
Bond markets are an important conduit of monetary policy signals to the economy. Reforms that improve the functioning of bond markets will hence facilitate macroeconomic management effectiveness. Here communication plays an increasingly important role. Good monetary policy communication is not only important to improve the effectiveness of monetary policy in the first place, but by reducing uncertainty it makes bond markets more attractive for investors, further improving monetary transmission.
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From World Factory to World Investor: The New Way of China Integrating into the World
Bijun Wang, Xiang Li
China Economic Journal,
No. 2,
2017
Abstract
This paper argues that outward direct investment (ODI) is replacing international trade as the new way China integrates into the world. Based on two complementary datasets, we document the pattern of Chinese ODI. We argue that the rapid growth of China’s ODI is the result of strong economic development, increasing domestic constraints, and supportive government policies. Compared with trade integration, investment integration involves China more deeply in global business. As a new global investor, China’s ODI in the future is full of opportunities, risks, and challenges. The Chinese government should improve bureaucracy coordination and participate more in designing and maintaining international rules to protect ODI interests.
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Predicting Free-riding in a Public Goods Game – Analysis of Content and Dynamic Facial Expressions in Face-to-Face Communication
Dmitri Bershadskyy, Ehsan Othman, Frerk Saxen
IWH Discussion Papers,
No. 9,
2019
Abstract
This paper illustrates how audio-visual data from pre-play face-to-face communication can be used to identify groups which contain free-riders in a public goods experiment. It focuses on two channels over which face-to-face communication influences contributions to a public good. Firstly, the contents of the face-to-face communication are investigated by categorising specific strategic information and using simple meta-data. Secondly, a machine-learning approach to analyse facial expressions of the subjects during their communications is implemented. These approaches constitute the first of their kind, analysing content and facial expressions in face-to-face communication aiming to predict the behaviour of the subjects in a public goods game. The analysis shows that verbally mentioning to fully contribute to the public good until the very end and communicating through facial clues reduce the commonly observed end-game behaviour. The length of the face-to-face communication quantified in number of words is further a good measure to predict cooperation behaviour towards the end of the game. The obtained findings provide first insights how a priori available information can be utilised to predict free-riding behaviour in public goods games.
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Stellungnahme zum „Strukturstärkungsgesetz Kohleregionen“ anlässlich der Anhörung im Ausschuss für Wirtschaft und Energie des Deutschen Bundestages am 15. Mai 2019
Oliver Holtemöller, Christoph Schult
IWH Online,
No. 2,
2019
Abstract
Die Bundesregierung plant, bis zum Jahr 2038 die Produktion von Strom aus Braunkohle zu beenden. Den von dem Braunkohleausstieg besonders betroffenen Regionen will die Bundesregierung finanzielle Hilfe für den Strukturwandel gewähren. Dazu soll das „Strukturstärkungsgesetz Kohleregionen“ beschlossen werden. In dieser Stellungnahme werden ökonomische Aspekte des vorgesehenen beschleunigten Braunkohleausstiegs diskutiert. Zentrale Aussagen der Stellungnahme sind, dass ein beschleunigter Braunkohleausstieg zwar geeignet ist, nationale Emissionsziele zu erreichen, aber die europäischen bzw. globalen Treibhausgasemissionen dadurch kaum beeinflusst werden. Die gesamtwirtschaftlichen Kosten eines beschleunigten Braunkohleausstiegs dürften überschaubar sein, aber die wirtschaftliche Entwicklung in einzelnen Regionen würde aufgrund der regionalen Konzentration des Braunkohleabbaus deutlich beeinträchtigt werden. Maßnahmen zur Förderung des Strukturwandels in den betroffenen Regionen sollten an den wichtigsten langfristigenWachstumstreibern Bildung sowie Forschung und Entwicklung ansetzen und vor allem das Humankapital stärken. Eine Konzentration auf die Förderung von Sachinvestitionen, auf die Industrie oder auf bestimmte Technologien ist hingegen nicht aussichtsreich in Bezug auf langfristige ökonomische Ziele.
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Banks’ Financial Distress, Lending Supply and Consumption Expenditure
H. Evren Damar, Reint E. Gropp, Adi Mordel
Abstract
We employ a unique identification strategy linking survey data on household consumption expenditure to bank-level data to estimate the effects of bank financial distress on consumer credit and consumption expenditures. We show that households whose banks were more exposed to funding shocks report lower levels of non-mortgage liabilities. This, however, does not result in lower levels of consumption. Households compensate by drawing down liquid assets to smooth consumption in the face of a temporary adverse lending supply shock. The results contrast with recent evidence on the real effects of finance on firms’ investment and employment decisions.
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