Innovation Network
Daron Acemoglu, Ufuk Akcigit, William R. Kerr
Proceedings of the National Academy of Sciences of the United States of America (PNAS),
No. 41,
2016
Abstract
Technological progress builds upon itself, with the expansion of invention in one domain propelling future work in linked fields. Our analysis uses 1.8 million US patents and their citation properties to map the innovation network and its strength. Past innovation network structures are calculated using citation patterns across technology classes during 1975–1994. The interaction of this preexisting network structure with patent growth in upstream technology fields has strong predictive power on future innovation after 1995. This pattern is consistent with the idea that when there is more past upstream innovation for a particular technology class to build on, then that technology class innovates more.
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Taxation and the International Mobility of Inventors
Ufuk Akcigit, Salomé Baslandze, Stefanie Stantcheva
American Economic Review,
No. 10,
2016
Abstract
We study the effect of top tax rates on “superstar” inventors’ international mobility since 1977, using panel data on inventors from the US and European Patent Offices. We exploit the differential impact of changes in top tax rates on inventors of different qualities. Superstar inventors' location choices are significantly affected by top tax rates. In our preferred specification, the elasticity to the net-of-tax rate of the number of domestic superstar inventors is around 0.03, while that of foreign superstar inventors is around 1. These elasticities are larger for inventors in multinational companies. An inventor is less sensitive to taxes in a country if his company performs a higher share of its research there.
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29.09.2016 • 40/2016
Joint Economic Forecast: German Economy on Track – Economic Policy needs to be Realigned
Thanks to a stable job market and solid consumption, the German economy is experiencing a moderate upswing. The GDP is expected to increase by 1.9 percent this year, 1.4 percent in 2017, and 1.6 percent in 2018, according to the Gemeinschaftsdiagnose (GD, joint economic forecast) that was prepared by five of Europe’s leading economic research institutes on behalf of the Federal Government. The most recent GD, which was released in April, predicted a GDP growth rate of 1.6 percent for 2016 and 1.5 percent for 2017.
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09.09.2016 • 38/2016
The Perception of Financial Inferiority Nurtures Negative Attitudes Towards Foreigners
When people feel that their own economic status is inferior to the economic status of a relevant peer group, it becomes more likely that they develop negative attitudes towards foreigners. This link was found in a new study of the Halle Institute for Economic Research (IWH) – Member of the Leibniz Association. The effect is particularly strong with respect to foreigners from low-wage countries.
Walter Hyll
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02.09.2016 • 35/2016
The German Economy: Still Robust Despite Sliding Sentiment
The prospects for the German economy are still quite favorable. While sentiment indicators suggest that growth will slow at the end of the year, domestic demand will continue on an upward trend. The German GDP should increase by 1.9% in 2016. For 2017 we expect a lower growth rate of 1.2%“Weaker export volumes and higher growth of imports are the relevant factors for the slowdown”, says Prof Oliver Holtemöller, IWH Vice president. Unemployment will rise a bit as more refugees enter the labor market. Consumer price inflation remains moderate. The general government balance (cyclically ad¬justed as well as unadjusted) will be in surplus in both 2016 and 2017.
Oliver Holtemöller
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11.08.2016 • 34/2016
2016 stress tests: Italian banks don’t look worse than German large commercial banks
The European Banking Authority today presented the results of the 2016 stress tests. They show that most European banks appear more or less stable. “What worries me is, however, that the Italian banks do not look worse than the large German commercial banks,” says Reint E. Gropp, president of the Halle Institute for Economic Research (IWH). “It appears that both Deutsche Bank and Commerzbank would benefit significantly from an increase in equity. The stress test was also missing two crucial points: One, the effect of a long lasting low interest rate environment on banks was not simulated. And second, the test did not take into consideration that many small institutions could fail at the same time. This is not an unlikely scenario, given how small banks in particular struggle with shrinking interest margins,“ says Gropp. Finally, the stress test should not distract from the urgency to solve the problems in the Italian banking system.
Reint E. Gropp
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Does Administrative Status Matter for Urban Growth? Evidence from Present and Former County Capitals in East Germany
Bastian Heider, Albrecht Kauffmann, Martin T. W. Rosenfeld
Abstract
Public sector activities are often neglected in the economic approaches used to analyze the driving forces behind urban growth. The institutional status of a regional capital is a crucial aspect of public sector activities. This paper reports on a quasi-natural experiment on county towns in East Germany. Since 1990, cities in East Germany have demonstrated remarkable differences in population development. During this same period, many towns have lost their status as a county seat due to several administrative reforms. Using a difference-in-difference approach, the annual population development of former county capitals is compared to population change in towns that have successfully held on to their capital status throughout the observed period. The estimations show that maintaining county capital status has a statistically significant positive effect on annual changes in population. This effect is furthermore increasing over time after the implementation of the respective reforms.
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20.06.2016 • 24/2016
Financial market reaction to poll data suggests strong effects of a Brexit on exchange rates and the banking system both in the UK and in the EU
On 23 June 2016, there will be a referendum in the United Kingdom (UK) on the question of whether or not the country should remain in the European Union (EU). We use the polls as a measure of the likelihood of an exit to examine the likely effect of a Brexit on financial markets. “Whenever the probability in the polls of a Brexit moves above 50%, we observe a substantial depreciation of the UK pound with respect to most major currencies (including the euro), and strong decline in bank stock prices, suggesting that markets feel the financial sector (both in the UK and the EU) will be most severely affected by a Brexit”, IWH President Reint E. Gropp says. There is little effect on the euro/US Dollar exchange rate. “A huge concern is that overall market volatility both in the UK and the EU are on record highs since last Thursday, reflecting the higher uncertainty associated with Brexit and how exactly, if it happened, it would come about.” Within the UK, we see some evidence for a flight to safety into UK government bonds, but no effects for German bonds.
Reint E. Gropp
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09.06.2016 • 22/2016
The German Economy Benefits from Strong Domestic Demand
In 2016, the moderate upswing of the German economy continues. Incomes grow due to the steady expansion in employment, and the fall in energy prices has propped up the purchasing power of private households. As a consequence, private consumption expands healthily; investment in housing is additionally stimulated by very low interest rates. Exports, however, expand only moderately, as the world economy is rather weak. All in all, the IWH forecasts the German GDP to expand by 1.8% in this year and by 1.6% in 2017.
Oliver Holtemöller
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