Daten
Schlüsselbrücken zur Gebietsstands-Transformation in Deutschland – Daten Zur Demonstration, in welcher Form die Daten aufbereitet und angeboten werden, stellen wir aus den…
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Infografiken
Infografiken Bilder sagen manchmal mehr als viele Worte – daher haben wir für Sie ein paar ausgewählte Abbildungen zusammengestellt, die unsere Themen beleuchten. Sollten Sie…
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Bevölkerung und Arbeitsmarkt
Bevölkerung und Arbeitsmarkt Zu den Einwohnern und Einwohnerinnen gehören alle Personen (Deutsche und Ausländer/innen), die im Bundesgebiet (bzw. in einem Bundesland) ihren…
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Einkommen und Sparen
Einkommen und Sparen Primäreinkommen der privaten Haushalte Das Primäreinkommen der privaten Haushalte (einschließlich privater Organisationen ohne Erwerbszweck) enthält die…
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Competition and Moral Behavior: A Meta-Analysis of Forty-Five Crowd-Sourced Experimental Designs
Anna Dreber, Felix Holzmeister, Sabrina Jeworrek, Magnus Johannesson, Joschka Waibel, Utz Weitzel, et al.
Proceedings of the National Academy of Sciences of the United States of America (PNAS),
Nr. 23,
2023
Abstract
Does competition affect moral behavior? This fundamental question has been debated among leading scholars for centuries, and more recently, it has been tested in experimental studies yielding a body of rather inconclusive empirical evidence. A potential source of ambivalent empirical results on the same hypothesis is design heterogeneity—variation in true effect sizes across various reasonable experimental research protocols. To provide further evidence on whether competition affects moral behavior and to examine whether the generalizability of a single experimental study is jeopardized by design heterogeneity, we invited independent research teams to contribute experimental designs to a crowd-sourced project. In a large-scale online data collection, 18,123 experimental participants were randomly allocated to 45 randomly selected experimental designs out of 95 submitted designs. We find a small adverse effect of competition on moral behavior in a meta-analysis of the pooled data. The crowd-sourced design of our study allows for a clean identification and estimation of the variation in effect sizes above and beyond what could be expected due to sampling variance. We find substantial design heterogeneity—estimated to be about 1.6 times as large as the average standard error of effect size estimates of the 45 research designs—indicating that the informativeness and generalizability of results based on a single experimental design are limited. Drawing strong conclusions about the underlying hypotheses in the presence of substantive design heterogeneity requires moving toward much larger data collections on various experimental designs testing the same hypothesis.
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23.05.2023 • 14/2023
Analyse von Finanzmarkt-Gesprächen: Schwafelnde Manager schaden dem Unternehmen
Verweigert eine Top-Führungskraft gegenüber Profi-Investoren die Auskunft, sinkt danach der Börsenwert des Unternehmens. Das zeigt eine Studie des Leibniz-Instituts für Wirtschaftsforschung Halle (IWH) nach Auswertung von 1,2 Millionen Antworten aus Telefonkonferenzen.
Fabian Wöbbeking
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Logo und Farben
IWH-Logo und IWH-Farben 1. Logo 1.1 Wort-Bild-Marke 1.2 Varianten 1.2.1 Signet 1.2.2 Horizontale Varianten 1.2.3 Negative Varianten 2. IWH-Farben 1. Logo 1.1 Wort-Bild-Marke 1.1.1…
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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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30.11.2022 • 28/2022
Strengere Regeln für Banken können Immobilienmärkte entlasten
Schwierigkeiten auf dem deutschen Immobilienmarkt könnten eine Wirtschaftskrise weiter verschärfen. Der Staat hat zu wenig Einfluss, um diese Gefahr einzudämmen, zeigt eine Studie des Leibniz-Instituts für Wirtschaftsforschung Halle (IWH).
Michael Koetter
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Real Estate Transaction Taxes and Credit Supply
Michael Koetter, Philipp Marek, Antonios Mavropoulos
IWH Discussion Papers,
Nr. 26,
2022
Abstract
We exploit staggered real estate transaction tax (RETT) hikes across German states to identify the effect of house price changes on mortgage credit supply. Based on approximately 33 million real estate online listings, we construct a quarterly hedonic house price index (HPI) between 2008:q1 and 2017:q4, which we instrument with state-specific RETT changes to isolate the effect on mortgage credit supply by all local German banks. First, a RETT hike by one percentage point reduces HPI by 1.2%. This effect is driven by listings in rural regions. Second, a 1% contraction of HPI induced by an increase in the RETT leads to a 1.4% decline in mortgage lending. This transmission of fiscal policy to mortgage credit supply is effective across almost the entire bank capitalization distribution.
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