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.

Toshihiro Okubo, Eiichi Tomiura, 02 January 2017

The core-periphery gap raises important questions for economic geography. Using Japanese data, this column examines firms’ decision to separate non-production activities from production plant facilities. Large plants, plants which intensively purchase materials, and plants located further from the core are more likely to have separate corporate headquarters, though the magnitude of this effect is small. Small-sized plants appear to be especially vulnerable to remoteness from urban cores.

Hisamitsu Saito, Toshiyuki Matsuura, 25 November 2016

Agglomeration’s impact on product quality has received much less attention than its impact on productivity, despite the importance of quality as a precondition for economic development. This column employs plant-product-level data from Japanese manufacturing to assess the effects of urban agglomeration on product quality. The findings suggest that state and municipal tax breaks, and other public efforts to attract enterprises, enhance economic competitiveness by improving product quality along with productivity.

Nobuya Fukugawa, Akira Goto, 08 July 2016

Local public technology centres (Kosetsushi) in Japan have demonstrated notable success in fostering the development of regional industries. This column reports the results of the first branch-level survey of Kosetsushi, focusing on three areas: manufacturing, foods, and design. Kosetsushi are found to help clients through diverse, tailored technical consultations and, increasingly, by acting as a network hub for the transfer of symbolic and analytical knowledge. These findings have particular relevance for regional governments attempting to foster innovation through similar institutions.

Alessandro Maffioli, Carlo Pietrobelli, Rodolfo Stucchi, 14 June 2016

Cluster development programmes (CDPs) aim to support industrial clusters of agglomerated firms to achieve higher productivity and sustainable development. Such programmes have been prominent in Latin America over the past decade, but there have been few impact evaluations. This column presents the findings from an evaluation of Latin American CDPs. Various case studies show positive medium-term effects of the programmes on employment, exports, and wages. CDPs are also found to have positive spillover effects on untreated firms, and to improve the network connectivity and technology-transfer ties between firms.

Rudiger Ahrend, Alexander Lembcke, Abel Schumann, 19 January 2016

A city’s metropolitan governance structure has a critical influence on the quality of life and economic outcomes of its inhabitants. This column quantifies the impact of governance on productivity using data from five OECD countries. Administrative fragmentation, which complicates policy coordination across a city, has a negative effect on individual productivity. This finding, combined with benefits from good governance such as improved transport and lower pollution levels, highlights the importance of well-designed metropolitan authorities.

Nicholas Crafts, Alex Klein, 30 July 2015

There is increasing evidence that cities offer externalities that raise labour productivity. This column looks at the contribution of US cities to productivity growth at the turn of last century. The findings show that increased specialisation, promoted by improved transportation, was the key to productivity growth. Today’s policymakers should heed this lesson.

Marius Brülhart, Helen Simpson, 12 June 2015

The evidence on how industry-level agglomeration affects government taxation is mixed. This column argues that local governments offer subsidies to favour pre-existing employment in locally agglomerated industries. This finding is in line with theories of policy capture rather than government taxation of agglomeration benefits. 

Trevon Logan, John Parman, 09 March 2015

Racial disparities in socioeconomic conditions remain a major policy issue throughout the world. This column applies a new neighbour-based measure of residential segregation to US census data from 1880 and 1940. The authors find that existing measures understate the extent of segregation, and that segregation increased in rural as well as urban areas. The dramatic decline in opposite-race neighbours during the 20th century may help to explain the persistence of racial inequality in the US.

Neil Lee, Andrés Rodríguez-Pose, 17 February 2015

Creativity is assumed to be the mother of invention, but research testing whether this is the case is surprisingly rare. This column addresses this gap in the literature by assessing whether firms in creative industries in the UK are more innovative than firms outside creative industries. The authors also examine whether the location of creative-industry firms in creative cities – and the size of creative cities – matters for the innovative capacity of these firms.

Hiroyasu Inoue, Kentaro Nakajima, Yukiko Saito, 11 February 2015

Despite vast improvements in information and communications technology, the tendency of firms in related industries to cluster together hardly changed between 1985 and 2005. This column examines the relationship between geographic clustering and innovation using establishment-level data from Japan. Research establishments – especially those in high-technology industries – are more localised than average. The degree of localisation is greater when establishments are weighted by their creativity, as measured by the number of patents created and the number of citations received.

Masayuki Morikawa, 23 November 2014

The appropriate level of public sector wages is debated frequently in every country, and the debate has intensified in the wake of the global financial crisis. This column presents evidence that regional wage differentials in Japan are greater in the private sector than in the public sector. In regions where public sector wages are relatively high, skilled individuals may self-select into public sector jobs. At the same time, public sector employers in metropolitan regions such as Tokyo may have difficulty in hiring high quality employees.

Gabriel Ahlfeldt, Stephen Redding, Daniel Sturm, Nikolaus Wolf, 20 August 2014

Economic activity is highly unevenly distributed across space. Understanding what drives the agglomeration and dispersion is important for many economic and policy questions. This column describes a theoretical model of internal city structure incorporating agglomeration and dispersion and heterogeneity in local fundamentals. The authors use the division and reunification of Berlin as a natural experiment. Their findings show that both heterogeneity in locational fundamentals and agglomeration forces are important in shaping a city’s internal structure.

Hongyong Zhang, 21 July 2014

The Chinese government has been actively promoting innovation via policies such as R&D subsidies, tax relief, and location policies. Since 1995, central and local governments have established more than 100 clusters in over 60 cities. This column presents new evidence on the effect of the concentration of firms on product innovation (new products) in the manufacturing industries.

Coen Teulings, 11 July 2014

The financial crisis and the Great Recession have led to calls for more economic history in economic education. This column argues for a much broader use of history in economics courses, as a device for teaching both the logic and the empirical relevance of economics. A proposed curriculum would include the rise of agriculture, urbanisation, war, the rule of law, and demography.

Chris Forman, Avi Goldfarb, Shane Greenstein, 23 May 2014

The diffusion of the internet has had varying effects on the location of economic activity, leading to both increases and decreases in geographic concentration. This column presents evidence that the internet worked against increasing concentration in invention. This relationship is particularly strong for inventions with more than one inventor, and when inventors live in different cities.

Shahid Yusuf, Danny Leipziger, 03 March 2014

Urbanisation and GDP per capita are positively correlated across countries. However, when the sample is restricted to developing countries, urbanisation and growth are more loosely related – particularly in Africa. CEPR Policy Insight 71 argues that the low share of manufacturing in developing-country cities may help to explain this discrepancy. Strengthening urban finances, embracing technology, improving skills, and stimulating the formal sector will help cities to promote growth. Since decisions affecting urban development can have lasting impact, longer-term planning deserves greater attention than it is currently receiving.

Danny Leipziger, Shahid Yusuf, 03 March 2014

Urbanisation and GDP per capita are positively correlated across countries. However, when the sample is restricted to developing countries, urbanisation and growth are more loosely related – particularly in Africa. This column argues that the low share of manufacturing in developing-country cities may help to explain this discrepancy. Strengthening urban finances, embracing technology, improving skills, and stimulating the formal sector will help cities to promote growth. Since decisions affecting urban development can have lasting impact, longer-term planning deserves greater attention than it is currently receiving.

Takatoshi Tabuchi, 28 November 2013

Two important long-run trends in economic geography are steady urbanisation and agglomeration to the big cities. This column presents recent research on population trends focusing on fixed regions over time. In seven of the eight countries studied, the region containing the largest metropolitan area significantly increased in population share at the expense of the rest of the country over the past few centuries. A ‘new economic geography’ model with multiple, asymmetric regions can replicate this new stylised fact.

Nicholas Crafts, Nikolaus Wolf, 22 October 2013

Europeans worry about competition from low-wage economies. This column looks at the basis of the success of the 19th-century Lancashire cotton industry faced with a similar situation. The message is that the productivity benefits of a successful agglomeration can underpin both high wages and competitive advantage in world trade. Policymakers can support such agglomerations by easing land-use restrictions, promoting investments in transport, and providing local public goods.

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