flexpaneldid: A Stata Toolbox for Causal Analysis with Varying Treatment Time and Duration
Eva Dettmann, Alexander Giebler, Antje Weyh
IWH-Diskussionspapiere,
Nr. 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.
Artikel Lesen
The Regional Effects of a Place-based Policy – Causal Evidence from Germany
Matthias Brachert, Eva Dettmann, Mirko Titze
Regional Science and Urban Economics,
2019
Abstract
The German government provides discretionary investment grants to structurally weak regions in order to reduce regional inequality. We use a regression discontinuity design that exploits an exogenous discrete jump in the probability of regional actors to receive investment grants to identify the causal effects of the policy. We find positive effects of the programme on district-level gross value-added and productivity growth, but no effects on employment and gross wage growth.
Artikel Lesen
Startseite
Start für IWH-Insolvenztrend Von nun an veröffentlicht das IWH jeden Monat ein Update zum bundesweiten...
Zur Seite
Alumni
IWH-Alumni Das IWH möchte den Kontakt zu seinen ehemaligen Mitarbeiterinnen und...
Zur Seite
DPE Course Programme Archive
DPE Course Programme Archive 2019 2018 2017 2016 2015...
Zur Seite
IWH-FDI-Mikrodatenbank
IWH-FDI-Mikrodatenbank Die IWH-FDI-Mikrodatenbank (FDI = Foreign Direct Investment)...
Zur Seite
Public Investment Subsidies and Firm Performance – Evidence from Germany
Matthias Brachert, Eva Dettmann, Mirko Titze
Jahrbücher für Nationalökonomie und Statistik,
Nr. 2,
2018
Abstract
This paper assesses firm-level effects of the single largest investment subsidy programme in Germany. The analysis considers grants allocated to firms in East German regions over the period 2007 to 2013 under the regional policy scheme Joint Task ‘Improving Regional Economic Structures’ (GRW). We apply a coarsened exact matching (CEM) in combination with a fixed effects difference-in-differences (FEDiD) estimator to identify the effects of programme participation on the treated firms. For the assessment, we use administrative data from the Federal Statistical Office and the Offices of the Länder to demonstrate that this administrative database offers a huge potential for evidence-based policy advice. The results suggest that investment subsidies have a positive impact on different dimensions of firm development, but do not affect overall firm competitiveness. We find positive short- and medium-run effects on firm employment. The effects on firm turnover remain significant and positive only in the medium-run. Gross fixed capital formation responses positively to GRW funding only during the mean implementation period of the projects but becomes insignificant afterwards. Finally, the effect of GRW-funding on labour productivity remains insignificant throughout the whole period of analysis.
Artikel Lesen
Konjunktur aktuell: Konjunktur weiter stark, aber Risiken nehmen zu
Konjunktur aktuell,
Nr. 1,
2018
Abstract
Die internationale Konjunktur ist seit Herbst 2016 kräftig, und auch im Jahr 2018 dürfte die Weltwirtschaft deutlich expandieren, nach vorliegender Prognose um 3,3%. Die deutsche Wirtschaft ist derzeit in einer Hochkonjunktur. Allerdings ist zweifelhaft, ob die deutsche Wirtschaft über die Kapazitäten verfügt, um das Tempo des Aufschwungs noch lange durchzuhalten. Das Bruttoinlandsprodukt in Deutschland dürfte im Jahr 2018 mit 2,2% noch einmal recht kräftig und im Jahr 2019 mit 1,6% deutlich moderater expandieren. Der Zuwachs der Produktion in Ostdeutschland dürfte im Jahr 2018 mit 2,0% etwas unter dem in Westdeutschland liegen.
Artikel Lesen
