Executive Power: Rethinking the Modalities of Control

The Honorable Sundaresh Menon, Chief Justice of the Supreme Court of Singapore, delivered the 2018-2019 Bernstein Lecture in Comparative Law titled Executive Power: Rethinking the Modalities of Control. The Chief Justice discussed the control of executive power in Singapore as compared to other legal systems. Co-sponsored by the Center for International and Comparative Law and the Office of the Dean

The Bright Side of MAUP: an Enquiry on the Determinants of Industrial Agglomeration in the United States

Using county employment data for US and two appositely developed zoning algorithms, I compare the industrial concentration of manufacturing sectors calculated following the standard metropolitan and micropolitan statistical areas definition with two other counterfactuals, obtained by “gerrymandering” the original sample of counties. The methodology allows i) to obtain an unbiased estimate of industrial agglomeration which significantly improves on existing indices, and ii) to provide a ranking of industries according to their responsiveness to labour market determinants of agglomeration. Results show that labour market determinants explain one quarter of the variation of spatial agglomeration across industries.Industrial Agglomerations, MAUP, Industrial Concentration

Topics on High-Energy Elastic Hadron Scattering

We review the main results we have obtained in the area of high-energy elastic hadron scattering and presented in this series of Workshops on Hadronic Interactions. After an introduction to some basic experimental and theoretical concepts, we survey the results reached by means of four approaches: analytic models, model-independent analyses, eikonal models and nonperturbative QCD. Some of the ongoing researches and future perspectives are also outlined.Comment: 24 pages, 17 figures, typos corrected, one reference added and six references updated. Version to appear in Brazilian Journal of Physic

Approach to self-similarity in Smoluchowski's coagulation equations

We consider the approach to self-similarity (or dynamical scaling) in Smoluchowski's equations of coagulation for the solvable kernels $K(x,y)=2$, $x+y$ and $xy$. In addition to the known self-similar solutions with exponential tails, there are one-parameter families of solutions with algebraic decay, whose form is related to heavy-tailed distributions well-known in probability theory. For K=2 the size distribution is Mittag-Leffler, and for $K=x+y$ and $K=xy$ it is a power-law rescaling of a maximally skewed $\alpha$-stable Levy distribution. We characterize completely the domains of attraction of all self-similar solutions under weak convergence of measures. Our results are analogous to the classical characterization of stable distributions in probability theory. The proofs are simple, relying on the Laplace transform and a fundamental rigidity lemma for scaling limits.Comment: Latex2e, 42 pages with 1 figur