The empirical content of the job search model: Labor mobility and wage distributions in Europe and the US

Job search models of the labor market hypothesize a very tight correspondence between the determinants of labor turnover and individual wage dynamics on one hand, and the determinants of wage dispersion on the other. This paper offers a systematic examination of whether this correspondence is present in the data by estimating a rudimentary partial equilibrium job search model on a 3-year panel of individual worker data covering 10 European countries and the U.S. We find that our basic job search model fits the data surprisingly well. This also allows us to point at a number of interesting empirical regularities about wage distributions. Our results suggest that cross-sectional data on individual wages contain the basic information needed to obtain a reliable measure of the “magnitude of labor market frictions”, as measured by a parameter of the canonical job search model. Finally, we use our results in a cross-country comparison of the intensity and nature of job-to-job turnover. We arrange countries into two different groups according to their turnover intensity. We further show that the nature of job-to-job turnover is very different between those two groups: Turnover is predominantly voluntary in low-turnover countries, whereas it is to a large extent involuntary in high-turnover countries.     

The Geopolitics of China’s Maritime Silk Road Initiative

China’s “One Belt, One Road” project is comprised of two components: the Maritime Silk Road Initiative (MSRI) and the Silk Road Economic Belt (SREB)—that were announced separately in 2013. Each component has the potential to transform the global geopolitical landscape through the construction of interrelated infrastructure projects including ports, highways, railways and pipelines. Such hard infrastructure requires the complementary construction of soft infrastructure, such as free trade and investment agreements, and other accords. We introduce a special section focusing specifically on the geopolitics of the MSRI that stems from a workshop hosted in November 2015 in Shanghai. The origins, scope and content of the MSRI are described, along with a summary of the current literature discussing the project, and dominant geopolitical representations. The MSRI is a geopolitical project that involves a number of actors (governments, private companies and Chinese state-owned enterprises) at a number of geographic scales (cities, provinces, states and continents). Arrghi’s twin logics of territorial and economic power help frame and connect the papers of the special section to illustrate the complexity and dynamism of the geopolitics of the MSRI. The articles provide insights into the geopolitics of a large connectivity project.     

A Distance-Based Collective Weak Ordering

A group decision-making approach can be seen as a two stage process. The first stage allows for multi-cirteria evaluation of the alternatives and the second aims at deriving a collective weak ordering from the partial orderings supplied by the members after the first stage. The problem of combining the weak orderings to form a collective ranking is investigated. An axiomatic structure relating to the concept of distance between binary relations is developed. An algorithm for deriving the collective weak ordering is proposed, based on the idea of ranking first the least dominated alternatives.     

Does securities regulation constrain small business finance? An empirical analysis

In November 2001, the Canadian province of Ontario amended the private placement regulations considerably to facilitate access to equity financing by small and medium sized enterprises (SMEs). To determine the extent to which securities regulation is an effective constraint on financing of growth corporations, we analyze issue activity before and after this change took effect. We note an increase in the number of issues, but only a slight increase in the total amounts raised on the private market following the reform. The average size of the issues has thus decreased. Some of the observed changes can be traced to concurrent events, namely the burst of the technology bubble and the strong increase in the prices of natural resources, which represent a major sector in Canada. When we control for various factors that influence issue activity, we observe a statistically significant effect only on the number of issues by closed corporations, which seems to originate from the non-resource companies. These results do not rule out the conclusion that the reform eased the issue of small amounts of money by private companies. However, our results do not confirm the argument that securities regulation is a major constraint to small business finance.

Discrete Walrasian exchange process

In an exchange economy, we define a discrete exchange process, which is Walrasian, since the trades are determined by the equilibrium allocation of the local equilibrium. We prove that this process attains a Pareto optimal allocation after a finite number of steps and the local equilibrium price then supports the Pareto optimal allocation. Furthermore, along the process, the allocation remains feasible and the utility of each consumer is non-decreasing.     

Is bioenergy trade good for the environment?

We analyze the impacts of bioenergy trade on greenhouse gas emissions using a two-good, three-factor model. Bioenergy is an agricultural good used as a substitute for fossil fuels in industry. Governments tax domestic pollution without international coordination. We assume that northern countries have higher labor productivity than southern ones and that agriculture is less pollution intensive than industry (after taxation). We show that whereas southern countries impose a lower tax rate than northern ones, they do not necessary have a competitive advantage in industry, and that compared to autarky, trade liberalization either increases or decreases worldwide emissions depending on regional comparative advantages.     

Insurance law and incomplete contracts

We analyze how insurance law can mitigate moral hazard by allowing insurers to reduce or cancel coverage in some circumstances. We consider an incomplete contract setting in which the insurer may obtain information related to the policyholder's behavior through a costly audit of the circumstances of the loss. Court decisions are based on a standard of proof such as the balance of probabilities. We show that an optimal insurance law brings efficiency gains compared to the no-audit case. We also highlight the conditions under which the burden of proof should be on the insured, provided that insurers are threatened with sanctions for bad faith.