This paper examines the effect of inflation on real growth in a Solow growth model using data from a cross section of countries over a 30-year period. The advantage of using a theoretical model is that it reduces the risk that the results will reflect data-mining. The results suggest that the 5 percentage point reduction in inflation from the 1970s to the 1980s would increase the growth rate of...

This paper reports on an autonomous robot designed for operation in uncharted outdoor environments. To accomplish this we have developed a robot vehicle equipped with wide field-of-view stereo vision and high accuracy inertial navigation. The software resident onboard the vehicle uses binoculor cameras, mounted in a novel configuration, to produce dense range maps of the environment. This data ...

Our novel quality index is based on citations from international search reports and provides internationally comparable, quality-adjusted figures for applications made under the Patent Cooperation Treaty (PCT). We show that China’s recent patent expansion has taken place to the detriment of patent quality. Weighting national PCT counts with our index reveals a widening gap between the technolog...

BACKGROUND Previous studies using electroencephalography (EEG) to monitor brain activity have linked higher frontal theta activity to more focused attention and superior performance in goal-directed precision tasks. In biathlon, shooting performance requires focused attention after high-intensity cross-country skiing. PURPOSE To compare biathletes (serving as experts) and cross-country skiers...

This appendix contains additional analyses that we mention but do not report in the paper to preserve space.  Table IA.1: Cross-sectional gravity models (baseline equation (2)) on a sample that includes the natural resources industries.  Table IA.2: Cross-sectional gravity models (baseline equation (2)) with acquirer and target country fixed effects (instead of acquirer and target country cha...