Adam B. Jaffe


Research 'stars' in New Zealand: concentration, persistence and mobility

This report identifies a set of star researchers in New Zealand, based on the publication of very highly-cited papers. It then investigates the concentration of such papers across authors; the persistence of 'stardom' across time, and the extent to which stars come from abroad or...
Working paper

Worker flows, entry, and productivity in New Zealand’s construction industry

This research used administrative data on the population of New Zealand construction firms from 2001-2012, along with linked data on their employees and working proprietors, to study the relationships among worker flows, entry, and firm productivity.
Working paper

Intangible investment and firm performance

We combine survey and administrative data for about 13,000 firms from 2005 to 2013 to study the inter-relationships among firm characteristics, intangible investment and firm performance. We find that firm size is associated with higher intangible investment, while firm age, very low competition (‘captive market’)...
Working paper

Productivity distribution and drivers of productivity growth in the construction industry

Summary haiku: Productivity has risen. Thank entry and reallocation. Abstract: The construction industry contributes a large and growing share of the New Zealand economy, with total employment rising to almost 10% and value added (GDP contribution) rising to about 9% by 2012. While aggregate statistics...

The impact of R&D subsidy on innovation: a study of New Zealand firms

This paper examines the impact of government assistance through R&D grants on innovation output for firms in New Zealand. Using a large database that links administrative and tax data with survey data, we are able to control for large number of firm characteristics and thus...