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A series of highly publicized cases of ethical violations in Congress has produced a concerted reexamination of Congress's ethics processes. This article reviews the key arguments promoted by advocates for reforming Congress and examines the substantive and procedural dilemmas confronting members of Congress as they attempt to respond to calls for reform. These dilemmas are illustrated by examining a number of recent ethical cases in Congress. We conclude that the standards that Congress employs and the procedures its members use to enforce them are strongly influenced by the unique constitutional and political context of the institution. As legislators proceed in their efforts to institute new ethical standards, they will continually attempt to strike a balance between legitimate yet contradictory ethical, political, legislative, and procedural demands.

Public administration scholars often associate increased public participation in policy implementation with the advancement of democratic values. Likewise, scholars engaged in the various forms of action research (AR) promote their efforts as a means to democratizing the research process or contributing to improved social outcomes. Despite these common interests in participation and democracy, there have been few attempts to apply AR methods to policy implementation problems. Drawing on Matland's conflict-ambiguity matrix, we develop a framework for matching particular AR methods to specific policy implementation contexts. Adapted from the source document.

Governmental organizations operate in complex environments composed of public interest, economic, and managerial dimensions. The comprehensive nature of many social problems, as well as the limited means that governmental agencies are granted to address them, suggests that government will often lack the capacity to achieve expected levels of problem remediation regardless of its internal management capacities. Administrative problems may develop when one dimension is overemphasized to the neglect of the effects of others. An examination of the U.S. and Swedish governments demonstrates that similar factors are influencing administrative capacity in both nations; this poses important issues for policymakers.

AbstractExposure to synthetic chemicals, such as pesticides and pharmaceuticals, affects freshwater communities at broad spatial scales. This risk is commonly managed in a prospective environmental risk assessment (ERA). Relying on generic methods, a few standard test organisms, and safety factors to account for uncertainty, ERA determines concentrations that are assumed to pose low risks to ecosystems. Currently, this procedure neglects potential variation in assemblage sensitivity among ecosystem types and recommends a single low-risk concentration for each compound. Whether systematic differences in assemblage sensitivity among ecosystem types exist or their size, are currently unknown. Elucidating spatial patterns in sensitivity to chemicals could therefore enhance ERA precision and narrow a fundamental knowledge gap in ecology, the Hutchinsonian shortfall. We analyzed whether taxonomic turnover between field-sampled macroinvertebrate assemblages of different broad river types across Europe results in systematic differences in assemblage sensitivity to copper and imidacloprid. We used an extensive database of macroinvertebrate assemblage compositions throughout Europe and employed a hierarchical species sensitivity distribution model to predict the concentration that would be harmful to 5% of taxa (HC5) in each assemblage. Predicted $$H{C}_{5}$$

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values varied over several orders of magnitude. However, variation within the 95% highest density intervals remained within one order of magnitude. Differences between the river types were minor for imidacloprid and only slightly higher for copper. The largest difference between river-type-specific median $$H{C}_{5}$$

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values was a factor of 3.1. This level of variation is below the assessment factors recommended by the European Food Safety Authority and therefore would be captured in the current ERA for plant protection products. We conclude that the differences in taxonomic composition between broad river types translate into relatively small differences in macroinvertebrate assemblage sensitivity toward the evaluated chemicals at the European scale. However, systematic differences in bioavailability and multi-stressor context were not evaluated and might exacerbate the differences in the ecological effects of chemicals among broad river types in real-world ecosystems.