计量经济分析 = Econometric analysis

Statistics for Spatial Data.

The present historical moment may seem a particularly inopportune time to review Bowling Alone, Robert Putnam's latest exploration of civic decline in America. After all, the outpouring of volunteerism, solidarity, patriotism, and self-sacrifice displayed by Americans in the wake of the September 11 terrorist attacks appears to fly in the face of Putnam's central argument: that \"social capital\" -defined as \"social networks and the norms of reciprocity and trustworthiness that arise from them\" (p. 19)'has declined to dangerously low levels in America over the last three decades. However, Putnam is not fazed in the least by the recent effusion of solidarity. Quite the contrary, he sees in it the potential to \"reverse what has been a 30to 40-year steady decline in most measures of connectedness or community.\"' As an example of how the current \"war on terrorism\" could generate a durable civic renewal, Putnam points to the burst in civic practices that occurred during and after World War II, which he says \"permanently marked\" the generation that lived through it and had a \"terrific effect on American public life over the last half-century.\" 3 If Americans can follow this example and channel their current civic

Bowling alone: The collapse and revival of American community

The author systematically examines one of the important issues of information — establishing the market price. He introduces the concept of «search» — where a buyer wanting to get a better price, is forced to question sellers. The article deals with various aspects of finding the necessary information.

Economics of Information

The demarcation of science from other intellectual activities-long an analytic problem for philosophers and sociologists-is here examined as a practical problem for scientists. Construction of a boundary between science and varieties of non-science is useful for scientists' pursuit of professional goals: acquisition of intellectual authority and career opportunities; denial of these resources to "pseudoscientists"; and protection of the autonomy of scientific research from political interference. "Boundary-work" describes an ideological style found in scientists' attempts to create a public image for science by contrasting it favorably to non-scientific intellectual or technical activities. Alternative sets of characteristics available for ideological attribution to science reflect ambivalences or strains within the institution: science can be made to look empirical or theoretical, pure or applied. However, selection of one or another description depends on which characteristics best achieve the demarcation in a way that justifies scientists' claims to authority or resources. Thus, "science" is no single thing: its boundaries are drawn and redrawn inflexible, historically changing and sometimes ambiguous ways.

Boundary-Work and the Demarcation of Science from Non-Science: Strains and Interests in Professional Ideologies of Scientists

Conventional wisdom suggests that the main effect of price promotion is on brand switching (i.e., secondary demand); however, some recent studies demonstrate that the primary demand expansion effect can be considerably larger than previously believed. A significant driver of this primary demand effect is consumer stockpiling in response to price promotions. Indeed, experimental studies have shown that additional inventory on hand can lead to an endogenous increase in consumption. The authors develop a model of price competition between firms in response to the stockpiling and subsequent consumption dynamics of consumers. In this setting, the flexible consumption effect causes more intense price competition, deeper promotions, and an increase in the frequency of promotions. The authors use two years of scanner panel data from eight product categories and 4313 stockkeeping units to test three implications of the theoretical model; they find strong support for each.

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Price Competition under Stockpiling and Flexible Consumption

Body Work: Heterosexual Gender Performances in City Workplaces

Philosophy, politics and society

This book surveys a 'cluster' of works that seek to explore the cultures of cyberspace, the Internet and the information society. It introduces key ideas, and includes detailed discussion of the work of two key thinkers in this area, Manuel Castells and Donna Haraway, as well as outlining the development of cyberculture studies as a field. To do this, the book also explores selected 'moments' in this development, from the early 1990s, when cyberspace and cyberculture were only just beginning to come together as ideas, up to the present day, when the field of cyberculture studies has grown and bloomed, producing innovative theoretical and empirical work from a diversity of standpoints. Key topics include: * life on the screen * network society * space of flows * cyborg methods. Cyberculture Theorists is the ideal starting point for anyone wanting to understand how to theorise cyberculture in all its myriad forms.

Cyberculture Theorists: Manuel Castells and Donna Haraway

The only A-Z guide available on this subject, this book provides a wide-ranging and up to date overview of the fast-changing and increasingly important world of cyberculture. Its clear and accessible entries cover aspects ranging from the technical to the theoretical, and from movies to the everyday, including: Artificial Intelligence Cyberfeminism Cyberpunk Electronic government Games HTML Java The Matrix Netiquette Piracy. Fully cross-referenced and with suggestions for further reading, this comprehensive guide is an essential resource for anyone interested in this fascinating area.

David Bell

Papers

Price Competition under Stockpiling and Flexible Consumption

Body Work: Heterosexual Gender Performances in City Workplaces

Philosophy, politics and society

Cyberculture Theorists: Manuel Castells and Donna Haraway

Cyberculture: The Key Concepts