4,517 research outputs found

    Toxic Chemicals in the Environment

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    Presented and recorded with Arbib, M. A., Environmental Simulation and Long-Term Planning

    A Proposal for a Congressional Council of Revision

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    Predator-prey distance and latency to flee from an immobile predator: functional relationship and importance

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    When an immobile prey has detected an immobile predator nearby, predation risk is greater when the predator is closer. Consequently, prey flee with shorter latency as standing distance (predator-prey distance when both are still) decreases. Since it was first reported in 2009, this relationship has been confirmed in the few species studied. However, little is known about the functional relationship between standing distance and latency to flee (LF). We hypothesized that LF increases as standing distance increases at short distances, but reaches a plateau at longer distances where prey can escape reliably if attacked. We simulated immobile predators by moving slowly into positions near striped plateau lizards Sceloporus virgatus, stopping and then remaining immobile, and recording LF from the stopping time. LF increased from shorter to longer standing distances in a decelerating manner. The relationship was concave downward, and LF was indistinguishable among the longer standing distance groups. Latency to flee appears to reach a plateau or approach an asymptotic value as standing distance increases. The effect size of standing distance was large, indicating that S. virgatus sensitively adjusts LF to the level of risk associated with standing distance. Relationships between risk assessment and theoretical zones associated with risk, its assessment by prey, and escape decisions are discussed. Effect sizes of standing distance were substantial to large in all studies to date, indicating that standing distance is an important predation risk factor when both predator and prey are immobile

    Behavioral Economics and Its Meaning for Antitrust Agency Decision Making

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    Of all fields of regulation in the United States, antitrust law relies most heavily on economics to inform the design and application of legal rules. When drafting antitrust statutes in the late 19th and early 20th centuries, Congress anticipated that courts and enforcement agencies would formulate and adjust operational standards to account for new learning. The field of economics — especially industrial organization economics — would give broad statutory commands much of their analytical content.In principle, the flexibility of U.S. antitrust statutes makes competition policy adaptable and accommodates for upgrades over time. This evolutionary process is only effective if antitrust institutions can identify significant advances in economic learning and refine enforcement policy and doctrine accordingly. Owing to their expertise in economics and law, the two federal antitrust agencies — the Antitrust Division of the Department of Justice (DOJ) and the Federal Trade Commission (FTC) — are crucial instruments of adaptation. The antitrust system’s quality depends on the agencies’ commitment to reassess existing doctrine and policy in light of new developments

    Behavioral Economics: Implications for Regulatory Behavior

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    Behavioral economics (BE) examines the implications for decision-making when actors suffer from biases documented in the psychological literature. This article considers how such biases affect regulatory decisions. The article posits a simple model of a regulator who serves as an agent to a political overseer. The regulator chooses a policy that accounts for the rewards she receives from the political overseer — whose optimal policy is assumed to maximize short-run outputs that garner political support, rather than long-term welfare outcomes — and the weight the regulator puts on the optimal long run policy. Flawed heuristics and myopia are likely to lead regulators to adopt policies closer to the preferences of political overseers than they would otherwise. The incentive structure for regulators is likely to reward those who adopt politically expedient policies, either intentionally (due to a desire to please the political overseer) or accidentally (due to bounded rationality). The article urges that careful thought be given to calls for greater state intervention, especially when those calls seek to correct firm biases. The article proposes measures that focus rewards to regulators on outcomes rather than outputs as a way to help ameliorate regulatory biases

    U.S. Convergence with International Competition Norms: Antitrust Law and Public Restraints on Competition

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    In this Article we focus upon an area in which greater convergence of U.S. policy with the practice of many foreign countries is long overdue: the treatment of public policies that suppress competition. Whereas the European Union (“EU”) and numerous other jurisdictions have taken strong measures to limit restraints imposed by national government authorities and political subdivisions, U.S. antitrust policy in many ways is more tolerant of public restraints upon business rivalry. Since the early twentieth century, Supreme Court doctrines have evolved to grant states and the federal government broad rights to enact laws that restrain competition. Further, individual groups are largely free to lobby for laws designed to erect marketplace barriers, and in many cases to mire their competitors in a morass of governmental processes. Because government action (and private conduct to obtain such action) is challengeable in only relative narrow circumstances, much of the battle takes place in the legislative and regulatory arenas rather than in courts. Accordingly, advocacy is the primary tool available to both public and private enforcers of the U.S. antitrust laws to challenge state-imposed restraints on competition. Although the U.S. competition advocacy program has achieved important success, it is not enough. United States enforcers should stand on equal footing with their EU and other foreign counterparts in being able to challenge state action that threatens competition in the same manner as they can challenge private conduct. In this paper, we describe measures available to competition authorities in the U.S. and other jurisdictions to resist encroachments by government policies on the competitive process. We suggest approaches by which the framework of controls upon anticompetitive government policies could be strengthened in the United States
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