Valence,Policy Ideas,and the Rise of Sustainability

This article introduces to policy studies the concept of valence, which we define as the emotional quality of an idea that makes it more or less attractive. We argue that valence explains why some ideas are more successful than others, sometimes gaining paradigmatic status. A policy idea is attractive when its valence matches the mood of a target population. Skilled policy entrepreneurs use ideas with high valence to frame policy issues and generate support for their policy proposals. The usefulness of the concept of valence is illustrated with the case of sustainability, an idea that has expanded from the realm of environmental policy to dominate discussions in such diverse policy areas as pension reform, public finance, labor markets, and energy security. As the valence of sustainability has increased, policy entrepreneurs have used the idea to reframe problems in these various policy areas and promote reforms.     

Cycles of Jihadist Movements and the Role of Irrationality

The article argues that Islamist terror is driven by irrational forces; it analyzes jihadist values and doctrines that animate Islamic revolutionaries; it then contends that jihadist movements go through a cycle of mobilization, extremism, implosion and recreation. Finally, it assesses the prospects for jihadist revitalization, extremism, and decline in Syria and the Sahel. Examples from the Iraqi and Algerian jihadist campaigns are used for illustrative purposes throughout.     

A Fascinating Region of Incredible Beauty

<正>My first visit to China was in 1986.After that I have been to this charming country several times and during these visits heard     

A critique of bourgeois theories of economic development

Festival expenditures amount to over 15 per cent of a household's annual expenditures in rural India. Yet they have never been studied by economists. This article uses both qualitative and quantitative data from a case study of three South Indian villages to show that festivals are important public goods in the village, but neither a pure entertainment motive nor an altruistic desire to contribute to a public event seems to explain their size. Households which spend money on festivals, everything else held equal, are able, however, to generate tangible rewards - lower prices on food, higher social status and more invitations to meals from other families. This indicates that active participation in festivals generates private economic and social returns which help resolve a potential free-rider problem. The evidence is consistent with the notion that festivals serve as mechanisms by which communities build social networks.     

Aerial Bombing and Counterinsurgency in the Vietnam War

Aerial bombardment has been an important component of counterinsurgency practice since shortly after it became a viable military technology in the early twentieth century. Due to the nature of insurgency, bombing frequently occurs in and around settled areas, and consequently it tends to generate many civilian casualties. However, the effectiveness of bombing civilian areas as a military tactic remains disputed. Using data disaggregated to the level of the smallest population unit and measured at multiple points in time, this article examines the effect of aerial bombardment on the pattern of local control in the Vietnam War. A variety of estimation methods, including instrumental variables and genetic matching, show that bombing civilians systematically shifted control in favor of the Viet Cong insurgents.