A Fast, Easy, and Efficient Estimator for Multiparty Electoral Data

Katz and King have previously developed a model for predictingor explaining aggregate electoral results in multiparty democracies.Their model is, in principle, analogous to what least-squaresregression provides American political researchers in that two-partysystem. Katz and King applied their model to three-party electionsin England and revealed a variety of new features of incumbencyadvantage and sources of party support. Although the mathematicsof their statistical model covers any number of political parties,it is computationally demanding, and hence slow and numericallyimprecise, with more than three parties. In this paper we producean approximate method that works in practice with many partieswithout making too many theoretical compromises. Our approachis to treat the problem as one of missing data. This allowsus to use a modification of the fast EMis algorithm of King,Honaker, Joseph, and Scheve and to provide easy-to-use software,while retaining the attractive features of the Katz and Kingmodel, such as the t distribution and explicit models for uncontestedseats.     

THE POTENTIAL DEMISE OF ANOTHER NATURAL MONOPOLY: NEW TECHNOLOGIES AND THE ADMINISTRATION OF PERFORMING RIGHTS

This is a second in a series of two articles in which I challengethe collective administration of performing rights. In the firstarticle, published in a recent issue of this journal, I questionedthe natural monopoly paradigm that dominates the analysis ofcollective administration of performing rights. In this articleI demonstrate how, by lowering many of the transaction costswhich previously purported to justify the practice, new digitaltechnologies further undermine the justification for collectiveadministration. I also discuss whether market forces alone wouldtransform the market into a competitive one, consider possiblecontinuing roles for existing performing rights organizations,and compare the Canadian and the U.S. regulatory approachesto determine how conducive they are to such change.     

Generating a Corpus of Mobile Forensic Images for Masquerading user Experimentation

The Periodic Mobile Forensics (PMF) system investigates user behavior on mobile devices. It applies forensic techniques to an enterprise mobile infrastructure, utilizing an on‐device agent named TractorBeam. The agent collects changed storage locations for later acquisition, reconstruction, and analysis. TractorBeam provides its data to an enterprise infrastructure that consists of a cloud‐based queuing service, relational database, and analytical framework for running forensic processes. During a 3‐month experiment with Purdue University, TractorBeam was utilized in a simulated operational setting across 34 users to evaluate techniques to identify masquerading users (i.e., users other than the intended device user). The research team surmises that all masqueraders are undesirable to an enterprise, even when a masquerader lacks malicious intent. The PMF system reconstructed 821 forensic images, extracted one million audit events, and accurately detected masqueraders. Evaluation revealed that developed methods reduced storage requirements 50‐fold. This paper describes the PMF architecture, performance of TractorBeam throughout the protocol, and results of the masquerading user analysis.     

Environmental pollution: corporate crime and cancer mortality

Corporate crime remains more costly and arguably more harmful than street crime and such harms include environmental, air, and water pollution resulting in increasing cancer mortality rates around the globe. More importantly, these corporate crimes are global in nature and facilitated by transnational corporations’ capture of the USA Environmental Protection Agency.     

Entrapment Through the Lens of the Actio Libera in Causa

The entrapment defense is a puzzle of long standing. One the one hand, we are offended by the government’s subjecting someone vulnerable to extreme temptation. It seems like something anyone might fall prey to. On the other hand, it is hard to explain why someone who actually commits, or attempts a crime, and who would be liable if anyone other than the government had tempted him, should escape punishment. His blameworthiness seems the same. This essay seeks to illuminate this puzzle by showing how it parallels the long-standing debate surrounding the criminal law problem of the actio libera in causa—situations in which someone seeks to escape liability by contriving to put a certain defense in place, such as provoking his victim into attacking him, so that he can then kill him in self-defense. The parallels between the two problems do not serve to resolve either, but make them appear in a rather different light.