In this paper we present the Ifo Investment Database, which provides annual investment data for 12 investment assets in 50 German industries from 1991 onward. The data is consistent with national accounts statistics provided by the German Federal Statistical Office and is based on investments in...

Am 13. Dezember 2012 stellte das ifo Institut im Rahmen seines vorweihnachtlichen Pressegesprächs seine Prognose für die Jahre 2012 und 2013 vor. Die Weltkonjunktur hat sich seit der Mitte des vergangenen Jahres zunehmend abgekühlt. Dies machte sich, wenn auch in unterschiedlichem Ausmaß, in...

Die Weltkonjunktur hat im laufenden Jahr weiter Tritt gefasst, unterstützt von expansiven Impulsen der Geldpolitik und der staatlichen Konjunkturprogramme. Nach Ländern und Regionen differenziert ist die Dynamik der Erholung allerdings recht unterschiedlich. So hat sich das vom ifo Institut...

This articles investigates the recent trends in co-authorship in economics. Using data from more than 700.000 journal articles we show that the average number of authors per article has increased over the last years. This process is likely to be continued in the future. In a regression analysis...

In socio-economic sciences the RePEc network (Research Papers in Economics) has become an essential source for the gathering and the spread of both existing and new economic research. Furthermore, it is currently the largest bibliometric database in economic sciences containing 33 different...

The use of large datasets for macroeconomic forecasting has received a great deal of interest recently. Boosting is one possible method of using high-dimensional data for this purpose. It is a stage-wise additive modelling procedure, which, in a linear specification, becomes a variable selection...