flexpaneldid: A Stata Toolbox for Causal Analysis with Varying Treatment Time and Duration
Eva Dettmann, Alexander Giebler, Antje Weyh
IWH Discussion Papers,
No. 3,
2020
Abstract
The paper presents a modification of the matching and difference-in-differences approach of Heckman et al. (1998) for the staggered treatment adoption design and a Stata tool that implements the approach. This flexible conditional difference-in-differences approach is particularly useful for causal analysis of treatments with varying start dates and varying treatment durations. Introducing more flexibility enables the user to consider individual treatment periods for the treated observations and thus circumventing problems arising in canonical difference-in-differences approaches. The open-source flexpaneldid toolbox for Stata implements the developed approach and allows comprehensive robustness checks and quality tests. The core of the paper gives comprehensive examples to explain the use of the commands and its options on the basis of a publicly accessible data set.
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Firm-level Employment, Labour Market Reforms, and Bank Distress
Moritz Stieglitz, Ralph Setzer
Abstract
We explore the interaction between labour market reforms and financial frictions. Our study combines a new cross-country reform database on labour market reforms with matched firm-bank data for nine euro area countries over the period 1999 to 2013. While we find that labour market reforms are overall effective in increasing employment, restricted access to bank credit can undo up to half of long-term employment gains at the firm-level. Entrepreneurs without sufficient access to credit cannot reap the full benefits of more flexible employment regulation.
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09.10.2019 • 22/2019
Presseeinladung zum Workshop: „Strukturwandel auf dem Arbeitsmarkt“ am 17. und 18. Oktober 2019 in Halle (Saale)
Digitaler, flexibler, internationaler: Der Arbeitsmarkt ist in vielerlei Hinsicht im Umbruch. Wie dieser Wandel sich auf Regionen, Branchen, Betriebe und Beschäftigte auswirkt, diskutiert eine gemeinsame Veranstaltung des Instituts für Arbeitsmarkt- und Berufsforschung (IAB) und des Leibniz-Instituts für Wirtschaftsforschung Halle (IWH).
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Fehlende Fachkräfte in Deutschland – Unterschiede in den Betrieben und mögliche Erklärungsfaktoren: Ergebnisse aus dem IAB-Betriebspanel 2018
Eva Dettmann, Daniel Fackler, Steffen Müller, Georg Neuschäffer, Viktor Slavtchev, Ute Leber, Barbara Schwengler
IAB-Forschungsbericht 10/2019,
2019
Abstract
In the years after the economic crisis, the economic situation of establishments in West and East Germany has improved steadily. At the same time, increased labor market dynamics and a positive trend in total employment can be observed. Also the demand for skilled employees reached a new high of 2.7 million in 2018. Only about 60 percent of the demand could be covered, which is also reflected in a further increase of the so-called non-occupancy quota. With regard to the distribution of this indicator for skilled labor shortages, we observe clear sector- and size-specific differences as well as regional heterogeneity. The quota is particularly high in the construction industry and in agriculture and forestry, with more than half the positions left vacant. A positive correlation between shortages of skilled labor and the use of temporary work, flexible working hours and investments in vocational training and further education is assessed in a multivariate analysis. The structure of formal occupational skill requirements did not change very much over recent years. However, a clear trend towards more flexible work organization can be observed. For example, about one quarter of the establishments offer teleworking. The share of part-time employment is also increasing nationwide, especially in sectors with a higher proportion of women, such as the service industries or the public sector. The share of marginal employment is particularly high in sectors that are characterized by cyclical and/or seasonal demand fluctuations or comparatively unspecific skill requirements – and above-average shortages of skilled labor. In 2018, the proportion of establishments authorized to provide in-house vocational training rose for the first time since 2010 – to 54 percent in Germany. In Eastern Germany, the share is significantly lower at 49 percent. The proportion of authorized establishments that actually train apprentices has been relatively stable at around 50 percent for several years. Both successfully occupied and vacant apprenticeships are distributed very heterogeneously across sectors. The recruitment rate of successful graduates is about three quarters. In establishments with skilled labor shortages, both the training rate and the graduate hiring rate are higher, suggesting that vocational training is already used here as an alternative strategy for recruiting skilled employees. The share of establishments supporting further education of their employees remains stable at about fifty percent for several years, and the proportion of employees participating in training is still about one third. A comparatively higher rate of further education among unskilled employees in establishments with skilled labor shortages indicates that internal resources are being increasingly used here to meet the demand for skilled employees.
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HIP, RIP, and the Robustness of Empirical Earnings Processes
Florian Hoffmann
Quantitative Economics,
No. 3,
2019
Abstract
The dispersion of individual returns to experience, often referred to as heterogeneity of income profiles (HIP), is a key parameter in empirical human capital models, in studies of life‐cycle income inequality, and in heterogeneous agent models of life‐cycle labor market dynamics. It is commonly estimated from age variation in the covariance structure of earnings. In this study, I show that this approach is invalid and tends to deliver estimates of HIP that are biased upward. The reason is that any age variation in covariance structures can be rationalized by age‐dependent heteroscedasticity in the distribution of earnings shocks. Once one models such age effects flexibly the remaining identifying variation for HIP is the shape of the tails of lag profiles. Credible estimation of HIP thus imposes strong demands on the data since one requires many earnings observations per individual and a low rate of sample attrition. To investigate empirically whether the bias in estimates of HIP from omitting age effects is quantitatively important, I thus rely on administrative data from Germany on quarterly earnings that follow workers from labor market entry until 27 years into their career. To strengthen external validity, I focus my analysis on an education group that displays a covariance structure with qualitatively similar properties like its North American counterpart. I find that a HIP model with age effects in transitory, persistent and permanent shocks fits the covariance structure almost perfectly and delivers small and insignificant estimates for the HIP component. In sharp contrast, once I estimate a standard HIP model without age‐effects the estimated slope heterogeneity increases by a factor of thirteen and becomes highly significant, with a dramatic deterioration of model fit. I reach the same conclusions from estimating the two models on a different covariance structure and from conducting a Monte Carlo analysis, suggesting that my quantitative results are not an artifact of one particular sample.
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Langfristige Konsequenzen der Finanzkrise 2008/2009: Nachsichtige Regulierung schadet, flexible Löhne helfen
Reint E. Gropp, Carlo Wix
Wirtschaft im Wandel,
No. 2,
2019
Abstract
Die globale Bankenkrise der Jahre 2008/2009 hatte weltweit signifikant negative Auswirkungen auf die Realwirtschaft, und in vielen Ländern fiel die folgende wirtschaftliche Erholung deutlich langsamer aus als in vorherigen Rezessionen. In den Monaten nach der Insolvenz der amerikanischen Investmentbank Lehman Brothers reduzierten Banken ihre Kreditvergabe an Unternehmen, was zu einem Anstieg der Arbeitslosigkeit, einem Rückgang an Investitionen und einer Verringerung der Produktivität führte. Während diese kurzfristigen Effekte in der bisherigen Forschung gut dokumentiert sind, sind die langfristigen Auswirkungen von Bankenkrisen bisher weit weniger gut verstanden. Zwei aktuelle Studien unter IWH-Beteiligung zeigen, dass Bankenkrisen generell negative langfristige Effekte auf das Wachstum von Firmen haben, dass die Rettung von schwachen Banken während der Krise mit Produktivitätsverlusten in späteren Jahren einhergeht, und dass diese negativen langfristigen Effekte durch die Existenz inflexibler Löhne verstärkt werden.
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Firm-level Employment, Labour Market Reforms, and Bank Distress
Ralph Setzer, Moritz Stieglitz
Abstract
We explore the interaction between labour market reforms and financial frictions. Our study combines a new cross-country reform database on labour market reforms with matched firm-bank data for nine euro area countries over the period 1999 to 2013. While we find that labour market reforms are overall effective in increasing employment, restricted access to bank credit can undo up to half of long-term employment gains at the firm-level. Entrepreneurs without sufficient access to credit cannot reap the full benefits of more flexible employment regulation.
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Political Influence and Financial Flexibility: Evidence from China
Xian Gu, Iftekhar Hasan, Yun Zhu
Journal of Banking and Finance,
February
2019
Abstract
This paper investigates how political influence affects firms’ financial flexibility and speed of adjustment toward target leverage ratios. We find that at the macro level, firms in environments with high political advantages, proxied by provincial affiliations with heads of state as well as political status and party rank of provincial leaders, adjust faster. At the micro level, firms that are state-owned, have CPC members as executives, or bear low exposure to changes in political uncertainty adjust faster. When interacted, the micro-level political factors have more significant impact.
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Central Bank Transparency and the Volatility of Exchange Rates
Stefan Eichler, Helge Littke
Journal of International Money and Finance,
2018
Abstract
We analyze the effect of monetary policy transparency on bilateral exchange rate volatility. We test the theoretical predictions of a stylized model using panel data for 62 currencies from 1998 to 2010. We find strong evidence that an increase in the availability of information about monetary policy objectives decreases exchange rate volatility. Using interaction models, we find that this effect is more pronounced for countries with a lower flexibility of goods prices, a lower level of central bank conservatism, and a higher interest rate sensitivity of money demand.
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Central Bank Transparency and the Volatility of Exchange Rates
Stefan Eichler, Helge Littke
Abstract
We analyze the effect of monetary policy transparency on bilateral exchange rate volatility. We test the theoretical predictions of a stylized model using panel data for 62 currencies from 1998 to 2010. We find strong empirical evidence that an increase in the availability of information about monetary policy objectives decreases exchange rate volatility. Using interaction models, we find that this effect is more pronounced for countries with a lower flexibility of goods prices, a lower level of central bank conservatism, and a higher interest rate sensitivity of money demand.
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