Time,congestion, and public goods

This paper considers intermediate and final public goods as stocks from which consumers obtain a flow of services by expending scarce time. The services so obtained depend on the time other individuals spend utilizing these same goods. Optimality conditions are derived for both stock levels and flow usage where tolls are required to cover costs. The elasticities in the resulting formulae are endogenous in the sense that only certain values are permissible. In the intermediate good case, at the optimum, the public good will always be locally optimally supplied and locally underutilized to a degree which depends on the congestion parameter.     

Searle and Collective Intentionality

A BSTRACT . Several key elements go into Searle's construction of social reality, namely, collective intentionality, constitutive rules, and status functions. But by far the most important and arguably contentious of these is collective intentionality. Searle postulates his notion of collective intentionality as a solution to a conflict between two of his own problematic claims: the irreducibility of collective intentions to singular intentions and what he sees as the requirements of methodological individualism. According to Searle, methodological individualism seems to require that we reduce collective intentionality to individual intentionality; however, this contradicts his claim that collective intentionality is irreducible to individual intentionality plus some mutual beliefs. I will show that at least part of what is really at stake here is Searle's internalism or, as he puts it, his "brain in a vat condition." My strategy will be to examine his internalism and show that Searle's account is far more radical than other internalists in that he extends internalism beyond its usual domain of the mental to incorporate social facts. While there are no knockdown arguments in favor of either internalism or externalism as normally construed in the philosophy of mind, I will show that Searle's account of collective intentionality introduces an element of privacy to social facts that denies us the public access to the conditions on the basis of which we normally take collective facts to obtain.     

Institutional evolution as an emerging focus in scenario planning

In this paper, we argue that institutional evolution should occupy a center stage in scenario development. During the last two decades, strategy models have neglected the institutional milieu, partly because analytical approaches to link institutional milieus and business contexts were underdeveloped. However, theoretical developments in institutional economics accomplished during this time period make it possible to connect the consequences of institutional evolution to strategy development. Further, with the increasing globalization of commerce, and the attendant complexity and turbulence in institutional evolution, particularly in emerging economies, significant opportunities for strategy related action may reside not in product markets but in institutional arenas. Institution-focused scenarios are therefore increasingly needed. We outline the key linkages between the institutional milieu and business contexts and illustrate how scenarios incorporating institutional parameters can shed light on the strategy context in the case of emerging economies.     

Beyond concern: socio-demographic and attitudinal influences on privacy and disclosure choices

ABSTRACT

The co-option of consumers as unwilling agents in their own surveillance has enabled significant abuses of consumer privacy. Previous studies have largely used privacy concern as a proxy for overall privacy attitudes. In this study, we implement a choice experiment in combination with measures adapted from Communication Privacy Management theory to enable a broader exploration of the influences of privacy attitudes by contextualising privacy as a negotiation about accessibility over contextual boundaries. Key findings suggest individuals’ social media disclosure decisions are influenced at least in part by their privacy attitudes, particularly with respect to information categories which may cue other personal information. Findings are also presented on consumers’ willingness to pay for privacy, with implications for alternative revenue streams not built on consumer surveillance.     

应客观看待中国因素对油价的影响

【美国《华尔街日报》6月9日】美国前总统布什（Gegrge W．Bush）的一位助手几年前曾说，“我们创造自己的现实”。拿这句话来形容华盛顿和北京目前对大宗商品市场的影响是再恰当不过了。     

Requests for zoo visitors to undertake pro-wildlife behaviour: How many is too many?

Recognising the potential conservation impact, zoos regularly ask their visitors to undertake pro-wildlife behaviour. This paper presents the results of two studies undertaken to address the question: how often during a visit should visitors be asked? Study 1 sought to a) determine individuals' personal thresholds and b) the point where the number of different behaviours requested began affect visitors' experiences. Study 2 sought the same, but focused on requests for the same behaviour. Results suggest that few respondents' personal thresholds were crossed (2.5% in Study 1 and 9% in Study 2). In neither study did many respondents (2.5% in Study 1 and 2.8% in Study 2) feel that the number of requests negatively affect their overall zoo experience. While there are caveats, we conclude that there appears little cause for concern about asking zoo visitors on multiple occasions to act in support of wildlife. Indeed, such requests may improve experiences.     

A cross-national comparison and taxonomy of DEA-based hospital efficiency studies

This paper provides the first taxonomy of hospital efficiency studies that uses data envelopment analysis (DEA) and related techniques. We provide a systematic review of 79 such studies published from 1984–2004 that represent 12 countries. Only studies written in English are considered. A cross-national comparison reveals significant differences with respect to important study characteristics such as type of DEA model selected and choice of input and output categories. Compared with US studies, European efforts are more likely to measure allocative rather than technical efficiency, use longitudinal data, and use fewer observations. We take a longitudinal perspective that illustrates the life cycle of this research, as well as its diffusion across disciplines. Our taxonomy can be used by policy makers and researchers to review past, and assemble new, DEA models.