Klaus Adam, Henning Weber, 26 September 2017

The productivity of many firms evolves over time, which impacts the optimal inflation rate, that is, the rate of price increase with the least distortionary effect on relative goods prices. This column presents estimates for the US that suggest that, due to firm-level productivity changes, the optimal inflation rate has dropped from somewhat over 2% in the mid-1980s to a current level of roughly 1%.

Nicholas Bloom, Chad Jones, John Van Reenen, Michael Webb, 20 September 2017

The rate of productivity growth in advanced economies has been falling. Optimists hope for a fourth industrial revolution, while pessimists lament that most potential productivity growth has already occurred. This column argues that data on the research effort across all industries shows the costs of extracting ideas have increased sharply over time. This suggests that unless research inputs are continuously raised, economic growth will continue to slow in advanced nations.

David Byrne, Dan Sichel, 22 August 2017

One explanation given for the apparent recent slowdown in labour productivity growth in advanced economies is poor measurement. This column argues that while the available evidence on mismeasurement does not in fact provide an explanation for the slowdown, innovation is much more rapid than would be inferred from official measures, and on-going gains in the digital economy make the productivity slowdown even more puzzling. At the same time, this continued technical advance could provide the basis for a future pickup in productivity growth.

Philippe Aghion, Antonin Bergeaud, Timo Boppart, Peter Klenow, Huiyu Li, 16 August 2017

Slowing growth of total factor productivity has led some to suggest that the world is running out of ideas for innovation. This column suggests that the way output is measured is vital to assessing this, and quantifies the role of imputation in output measurement bias. By differentiating between truly ‘new’ and incumbent products, it finds missing growth in the US economy. Accounting for this missing growth will allow statistical offices to improve their methodology and more readily recognise the ready availability of new ideas, but also has implications for optimal growth and inflation targeting policies.

Daron Acemoğlu, Ufuk Akcigit, Douglas Hanley, William Kerr, 05 July 2017

Substantial headway has been made in the transition to clean technology, but recent political developments threaten this progress. This column examines the transition process using a microeconomic model of competition in production and innovation between clean and dirty technologies. The results suggest that production taxes can deal with dirty emission externalities, while research subsidies are sufficient to redirect innovation towards clean technologies. However, delaying intervention will drastically slow down the overall transition.

Hidemichi Fujii, Shunsuke Managi, 16 June 2017

Patent applications are a good indicator of the nature of technological progress. This column compares trends in applications for artificial intelligence patents in Japan and the US. One finding is that the Japanese market appears to be less attractive for artificial intelligence technology application, perhaps due to its stricter regulations on the collection and use of data.

Charles R. Hulten, Leonard Nakamura, 02 June 2017

Conventional growth theory characterises innovation as ‘resource-saving’, in the sense that it allows the same output to be produced with fewer resources. This column introduces a sources-of-welfare growth model that also includes a measure of ‘output-saving’ innovation, which arises from the expanded scope and efficiency in consumer choice recently brought about by the Internet economy and smartphones. The findings highlight how various new kinds of intangible capital complicate the measurement of GDP.


Leading economists, managers, research scientists, experts from industry as well as venture capitalists will determine the state of the art in the field of economic theory of innovation and stimulate further work to better understand the innovation process.
The conference will host 21 plenary lectures with outstanding speakers from various prestigious institutions such as Prof. Venki Ramakrishnan, 2009 Nobel Prize in Chemistry, Group Leader of the Medical Research Council Laboratory of Molecular Biology in Cambridge and President of the Royal Society, UK or Prof. Maria Leptin, EMBO Director, Prof. Dietmar Harhoff, Director Max Planck Institute for Innovation and Competition and Prof. Marie Thursby, Georgia Institute of Technology.

Pinelopi Goldberg, Nina Pavcnik, 21 June 2017

Daron Acemoğlu, Pascual Restrepo, 10 April 2017

As robots and other computer-assisted technologies take over tasks previously performed by labour, there is increasing concern about the future of jobs and wages. This column discusses evidence that industrial robots reduced employment and wages between 1990 and 2007. Estimates suggest that an extra robot per 1,000 workers reduces the employment to population ratio by 0.18-0.34 percentage points and wages by 0.25-0.5%. This effect is distinct from the impacts of imports, the decline of routine jobs, offshoring, other types of IT capital, or the total capital stock. 

Ufuk Akcigit, John Grigsby, Tom Nicholas, 27 March 2017

The impact of immigration on US economic development has become a controversial issue in recent policy debates. This column, arising from a study linking Federal Census data with patent records, examines the historical role of immigrant inventors in the process of US technological innovation. Immigrant inventors appear to have been of central importance to American innovation during the 19th and 20th centuries, both through their own inventive activity and through their influence on domestic inventors.

William Maloney, Felipe Valencia Caicedo, 24 March 2017

The generation and diffusion of scientific knowledge and technology are assumed to be drivers of modern economic growth, but there is a lack of firm empirical evidence of this. This column uses the first detailed data on the density of engineers in the western hemisphere to argue that historical differences in innovative capacity, as captured by the density of engineers in 1880, explain a significant fraction of the Great Divergence. The results confirm the imperative of developing higher-order human capital.

David Autor, David Dorn, Gordon Hanson, Gary P. Pisano, Pian Shu, 20 March 2017

The discussion of the decline in US manufacturing during the 2016 presidential election campaign largely focused on job losses. This column examines the effects of Chinese import competition on another metric for the health of the US manufacturing sector – innovation.  Firms whose industries were exposed to a greater surge of Chinese import competition from 1991 to 2007 experienced a significant decline in their patent output as well as their R&D expenditures. While politicians’ ‘obsession’ with manufacturing is primarily due to job losses, an accompanying reduction in innovation may well affect economic growth in the longer term.

Martin Watzinger, Thomas Fackler, Markus Nagler, Monika Schnitzer, 19 February 2017

There is growing concern that dominant companies use patents strategically to keep competitors from entering their market. This column uses the landmark 1956 Consent Decree against Bell Labs to explore whether antitrust enforcement is an effective remedy to the problem. Results show that patents can indeed be used as an entry barrier for start-up firms, and that the compulsory licensing of patents can foster market entry and innovation. However, compulsory licensing is found to be ineffective in markets where dominant firms have other means of market foreclosure.

Ufuk Akcigit, John Grigsby, Tom Nicholas, 02 February 2017

A pressing issue facing policymakers around the globe today is how to generate long-term economic growth through technological innovation. Using a new dataset that matches 19th and 20th century patent records with census data, this column attempts to shed some light on the ‘golden age’ of US innovation. Population density and financial development are found to be important determinants of state innovativeness, while education appears to be the critical input at the individual level. These findings have important implications for innovation policy today.

Biagio Bossone, 25 January 2017

Electronic money – digital payment instruments that store value – can be seen simply as a technological innovation for holding and accessing regular money. This column argues that how it is used and regulated will determine whether e-money instead serves as a replacement for existing money, and discusses the regulatory implications.

Daron Acemoğlu, Ufuk Akcigit, William Kerr, 20 January 2017

Innovation is typically seen as a cumulative process, with new technologies building on existing knowledge - but our knowledge of how progress in a specific area is influenced by knowledge in other, ‘upstream’ areas is limited. Using US patent data, this column identifies a stable ‘innovation network’ that serves as a conduit for cumulative knowledge development. Technological advances in one field can advance progress in multiple neighbouring fields, but will have a stronger influence on more closely related areas.

Susan Helper, Jennifer Kuan, 20 December 2016

Innovation is often associated with a few visionaries working in new and dynamic industries. In practice, however, critical innovation occurs daily at many points throughout a supply chain. This column uses recent survey data to examine innovation in the US automotive supply chain. Process innovations can have major downstream benefits, and ‘collaborative creativity’ between suppliers and customers is found to be critical in innovation efforts. US automakers should focus on strengthening ties with their suppliers in order to remain competitive.

Klaus Desmet, Dávid Krisztián Nagy, Esteban Rossi-Hansberg, 30 November 2016

Recent political events have highlighted a growing anti-globalisation sentiment, evident in scepticism towards free trade and resistance to immigration. However, existing analyses focus on short-term, local effects. Using global data, this column takes account of the complex relations between trade, migration, innovation, and growth. Liberal trade and immigration stances are found to have positive effects on global output. The results suggest that globalisation remains a tremendously powerful engine of growth.