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The Effect of Community Managers on Online Idea Crowdsourcing Activities

Lars Hornuf, Sabrina Jeworrek
Journal of the Association for Information Systems, Nr. 1, 2022
Abstract
In this study, we investigate whether and to what extent community managers in online collaborative communities can stimulate community activities through their engagement. Using a novel data set of 22 large online idea crowdsourcing campaigns, we find that moderate but steady manager activities are adequate to enhance community participation. Moreover, we show that appreciation, motivation, and intellectual stimulation by community managers are positively associated with community participation but that the effectiveness of these communication strategies depends on the form of participation managers wish to encourage. Finally, the data reveal that community manager activities requiring more effort, such as media file uploads vs. simple written comments, have a stronger effect on community participation.
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Uncovered Workers in Plants Covered by Collective Bargaining: Who Are They and How Do They Fare?

Boris Hirsch, Philipp Lentge, Claus Schnabel
British Journal of Industrial Relations, Nr. 4, 2022
Abstract
Abstract In Germany, employers used to pay union members and non-members in a plant the same union wage in order to prevent workers from joining unions. Using recent administrative data, we investigate which workers in firms covered by collective bargaining agreements still individually benefit from these union agreements, which workers are not covered anymore and what this means for their wages. We show that about 9 per cent of workers in plants with collective agreements do not enjoy individual coverage (and thus the union wage) anymore. Econometric analyses with unconditional quantile regressions and firm-fixed-effects estimations demonstrate that not being individually covered by a collective agreement has serious wage implications for most workers. Low-wage non-union workers and those at low hierarchy levels particularly suffer since employers abstain from extending union wages to them in order to pay lower wages. This jeopardizes unions' goal of protecting all disadvantaged workers.
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Financial Linkages and Sectoral Business Cycle Synchronization: Evidence from Europe

Hannes Böhm, Julia Schaumburg, Lena Tonzer
IMF Economic Review, December 2022
Abstract
We analyze whether financial integration leads to converging or diverging business cycles using a dynamic spatial model. Our model allows for contemporaneous spillovers of shocks to GDP growth between countries that are financially integrated and delivers a scalar measure of the spillover intensity at each point in time. For a financial network of ten European countries from 1996 to 2017, we find that the spillover effects are positive on average and much larger during periods of financial stress, pointing towards stronger business cycle synchronization. Dismantling GDP growth into value added growth of ten major industries, we observe that spillover intensities vary significantly. The findings are robust to a variety of alternative model specifications.
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Banking Market Deregulation and Mortality Inequality

Iftekhar Hasan, Thomas Krause, Stefano Manfredonia, Felix Noth
Bank of Finland Research Discussion Papers, Nr. 14, 2022
Abstract
This paper shows that local banking market conditions affect mortality rates in the United States. Exploiting the staggered relaxation of branching restrictions in the 1990s across states, we find that banking deregulation decreases local mortality rates. This effect is driven by a decrease in the mortality rate of black residents, implying a decrease in the black-white mortality gap. We further analyze the role of mortgage markets as a transmitter between banking deregulation and mortality and show that households' easier access to finance explains mortality dynamics. We do not find any evidence that our results can be explained by improved labor outcomes.
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Physical Climate Change and the Sovereign Risk of Emerging Economies

Hannes Böhm
Journal of Economic Structures, 2022
Abstract

I show that rising temperatures can detrimentally affect the sovereign creditworthiness of emerging economies. To this end, I collect long-term monthly temperature data of 54 emerging markets. I calculate a country’s temperature deviation from its historical average, which approximates present-day climate change trends. Running regressions from 1994m1 to 2018m12, I find that higher temperature anomalies lower sovereign bond performances (i.e., increase sovereign risk) significantly for countries that are warmer on average and have lower seasonality. The estimated magnitudes suggest that affected countries likely face significant increases in their sovereign borrowing costs if temperatures continue to rise due to climate change. However, results indicate that stronger institutions can make a country more resilient towards temperature shocks, which holds independent of a country’s climate.

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Trust and Contracting with Foreign Banks: Evidence from China

Desheng Yin, Iftekhar Hasan, Liuling Liu, Haizhi Wang
Journal of Asian Economics, December 2022
Abstract
We empirically investigate whether firms doing business in regions characterized as having high social trust receive preferential treatment on loan contractual terms by foreign banks. Tracing cross-border syndicated lending activities in China, we document that firms located in provinces with higher social trust scores obtain significantly low costs of bank loans and experience less stringent collateral requirement. To address the potential endogeneity issues, we adopt an instrumental variable approach and a two-sided matching model, and report consistent results. We also estimate a system of three equations through three-stage-least square estimator to accommodate the joint determination of price and non-price terms in loan contracts. In addition, we find that the effect of social trust on cost of bank loans is more prominent for firms located in provinces with relatively less developed formal institutions.
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European Real Estate Markets During the Pandemic: Is COVID-19 also a Case for House Price Concerns?

Michael Koetter, Felix Noth
IWH Policy Notes, Nr. 3, 2022
Abstract
We use a new database on European real estate purchase and rental prices – the IWH European Real Estate Index – to document the relationship between staggered COVID-19 dynamics and real estate prices in 14 EU countries between January 2020 and December 2021. For most countries, we find no statistically significant response of monthly purchase and rental prices due to an increase of regional COVID-19 cases. For the UK we find that more COVID-19 cases depressed both purchase and rental prices significantly, but the economic magnitude of effects was mild during this sample period. In contrast, rents in Italy increased in response to hiking COVID-19 cases, illustrating the importance to consider heterogeneous crisis patterns across the EU when designing policies. Overall, COVID-19 dynamics did not affect real estate values significantly during the pandemic, thereby mitigating potential financial stability concerns via a mortgage lending channel at the time.
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European Real Estate Prices

Michael Koetter, Felix Noth
IWH Technical Reports, Nr. 3, 2022
Abstract

Real estate markets are pivotal to financial stability given their dual role as the underlying asset of crucial financial products in financial systems, such as mortgage loans and asset-backed securities, and the primary source of household wealth alike. As such, they also play traditionally a crucial role for the transmission of monetary policy. Imbalances and sudden corrections in real estate markets have been the root cause of many financial crises over the last decades. But whereas some national, often survey-based indicators of real estate prices are provided by central banks and statistical offices, a comprehensive collection of purchase prices, rents, and proxies for the liquidity of European real estate markets is lacking. The IWH European Real Estate Index (EREI) seeks to fill this void for residential property. This technical report describes the gathering and processing of sale and rental prices for properties in 18 European countries. We provide the general scrapeing step in the section before describing country-specific details for each country in separated sub-sections.

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IWH-Tarif-Check: Trotz kräftig steigender Tariflöhne in der Metall- und Elektroindustrie realer Netto-Lohnverlust im Jahr 2023

Oliver Holtemöller, Birgit Schultz
IWH-Tarif-Check, Nr. 1, 2022
Abstract
Nach mehrjähriger pandemiebedingter Pause wieder reguläre Tariflohnerhöhungen für die Beschäftigten in der Metall- und Elektroindustrie Die Tarifvertragsparteien in der Metall- und Elektroindustrie haben sich erstmalig seit der Corona-Pandemie auf eine Stufenerhöhung der Tariflöhne in Höhe von 5,2% ab Juni 2023 und von 3,3% ab Mai 2024 geeinigt. Zusätzlich wurden zwei lohnsteuer- und sozialversicherungsabgabenfreie Inflationsausgleichsprämien von jeweils 1 500 Euro vereinbart, die zu Beginn des Jahres 2023 und 2024 gezahlt werden. Der Tarifvertrag läuft bis Ende September 2024. Auch gibt es ab dem Jahr 2023 einen Anstieg des bereits früher vereinbarten jährlich gezahlten Zusatzentgelts.
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Automation with Heterogeneous Agents: The Effect on Consumption Inequality

Tommaso Santini
IWH Discussion Papers, Nr. 28, 2022
Abstract
In this paper, I study technological change as a candidate for the observed increase in consumption inequality in the United States. I build an incomplete market model with educational choice combined with a task-based model on the production side. I consider two channels through which technology affects inequality: the skill that an agent can supply in the labor market and the level of capital she owns. In a quantitative analysis, I show that (i) the model replicates the increase in consumption inequality between 1981 and 2008 in the US (ii) educational choice and the return to wealth are quantitatively important in explaining the increase in consumption inequality.
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