Innovation is the creation of intellectual assets; intellectual assets are distinguished by nonconvexities. But different nonconvexities affect outcomes differently. Provided knowledge is finitely expansible, nonrivalry causes no difficulties for the existence and expost efficiency of competitive equilibrium. However, the minimum-size indivisibility in creating intellectual assets renders compe...

We present a robust and straightforward approach for fabricating a novel colloidosome system where colloidal particles are assembled to form colloidal shells on the surface of stimuli-responsive microgel scaffolds. We demonstrate that the structural properties of the colloidal shells can be controlled through the colloidal particle size and modulus, and the state of supporting microgel particle...

We use variation from the minimum legal drinking age to estimate the causal effect of access to alcohol on crime. Using a census of arrests in California and a regression discontinuity design, we find that individuals just over age 21 are 5.9% more likely to be arrested than individuals just under 21. This increase is mostly due to assaults, alcohol-related offenses, and nuisance crimes. These ...

This paper examines the siting of foreign-owned corporate technological development in European regions. The data used are patents granted in the US to the world's largest firms in the period 1987‘95, identifying the ultimate nationality of ownership and the location of the research facility responsible for each patent. According with the literature on knowledge creation in MNCs and the broader...

A new technique for measuring the Particle Size Distribution (PSD) of a soil, known as Single Particle Optical Sizing (SPOS), has been evaluated. A series of tests were conducted to compare the results obtained from sieve analysis and the SPOS method. It was found that for typical laboratory sands, the SPOS method oversizes particles compared to sieving by 20-30%, as predicted by theoretical an...