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21.
This paper presents an analytical approach to the tactical question: ‘What level of enforcement over time allows one to eliminate a street market for illicit drugs while expanding the least possible total effort?’ The analysis is done in the context of Caulkins' model [6] which predicts the rate of change of dealers as a function of enforcement level and several market parameters. Our analysis suggests that the simple strategy of using the maximum available enforcement intensity until the market has been eliminated minimizes the total enforcement effort required.  相似文献   
22.
Following the 1985 Transport Act in Great Britain, reforms in the provision of bus services continue across Europe and other parts of the world to this day. The British experience, however, remains a key point of study in informing these continuing developments. This article looks at the issue of contestability in bus markets, and tests for the existence of the contestable market in Britain through an examination of fare levels, profit margins and technical efficiencies in 90 identifiable bus markets. The main conclusion is that there is evidence of the contestable market in Britain, however it can hardly be described as widespread, only found to be present in 15 of the 90 markets identified in the sample. The real issue however, particularly with regard to continuing reforms elsewhere in Europe, is the ability of regulatory authorities to maintain competitive and contestable (free) markets and the research suggests that in the face of market forces this is simply not possible. The only conclusion therefore is that contestability in the free market is not sustainable, and thus can only be introduced directly through franchising.  相似文献   
23.
Disruptive innovation is always a great challenge to the management of incumbent firms, especially in fast-changing industries. In this study, scenarios were developed to facilitate strategic decision-making by incumbent mobile telecommunications firms that confront the threats of disruptive technology of voice over wireless local area network (VoWLAN). Combining various possible outcomes of uncertain conditions and strategic alternatives available to the incumbent firms, six scenarios were developed: incremental evolution, disruptive evolution, cost deterrence, fierce competition, market pre-emption and market convergence. The results show that a passive ‘do-nothing’ strategy by incumbent firms leads to failure if the disruptive technology is inevitable. However, firms can slow the pace of disruptive technology by applying a price-cut strategy and enjoy several years of profits in the process. Industrial insights and strategic implications obtained from all the scenarios are discussed.  相似文献   
24.
ABSTRACT

Marx's Capital shows that surplus value can be produced in one industry, yet realized as profit (and possibly revenue) by other industries over the course of circulation. This paper highlights the separation between surplus value production and realization in Marx's work, and develops a new method for estimating surplus value production at the industry level to trace out transfers of surplus value across industries. The framework is based on the ‘New Interpretation’ and links money value added to surplus value production at the industry level. Data on value added by industry for the U.S. are used to estimate surplus value production by industry. The analysis allows comparison of surplus value production and realization in each industry. The pattern of differentials between surplus value creation and realization across industries sheds light on the processes of capitalist competition and points to a source of instability for capitalist economies.  相似文献   
25.
The authors detail an urban economics experiment that is easily run in the classroom. The experiment has a flexible design that allows the instructor to explore how congestion, zoning, public transportation, and taxation levels determine the bid–rent function. Heterogeneous agents in the experiment compete for land use using a simple auction mechanism. Using the data that is collected, a bid–rent function is derived, and the experimental treatment is altered over the course of three sessions to uncover core concepts in urban economics. Moreover, this provides a tangible experience that can be used to help undergraduates relate to urban issues such as the steep rent gradient found around many larger colleges and universities.  相似文献   
26.
Karpoff reports on a “barter trading game” in which students exchanged real goods over a period of seven weeks with different market constraints imposed each week. Student comments about the exercise were favorable.  相似文献   
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28.
This article defends three ethical arguments against emissions trading. The first argument alleges that emissions trading is morally objectionable, because it ‘commodifies’ the atmosphere. The second argument involves various objections to attaching prices to units of emissions – loosely speaking, the objection is to pricing that which is priceless or should not be priced. The third argument turns on the idea that if a large cut in emissions is to be made by society overall, everyone should ‘do their bit’ by making a particular kind of sacrifice rather than paying others to do it instead. Some general conclusions concern the limitations of confining the analysis to idealised emissions trading, the difficulty in separating ‘economistic’ thinking about policy delivery from policy choice and the need to focus questions of justice on consumers rather than on producers.  相似文献   
29.

Many of Russia's contemporary environmental problems can be related, at least in part, to the activities of the Soviet period. However, the strength of this relationship can sometimes result in the environmental influences of post-Soviet society being ignored or understated. In recognition of this fact, this article examines the relationship between structural economic change and the natural environment in the post-Soviet period. The first part of the article is concerned with general economic trends and associated environmental consequences during the period 1990 to 1997. It then moves on to consider the environmental repercussions of structural changes within the country's industrial and agricultural sectors.  相似文献   
30.
Jonathan Kent 《Geopolitics》2013,18(4):793-818
From 2001 to 2005 Canada and the US dramatically altered the way each country views its border. In response to the attacks on New York City and Washington DC, Canada and the US entered into three important partnerships: the Smart Borders Agreement (SBA), the Container Security Initiative (CSI), and the Security Prosperity Partnership (SPP). These arrangements will be conceptualised here as “tacit bargains” whereby Canada provided the US with security in hope of renewed trust and economic accessibility. These “tacit bargains” required a concession of traditional state sovereignty so that stable and predictable relations between both countries could continue. While this process is ostensibly a violation of state sovereignty, the argument presented here is that these three “tacit bargains” represent a transition of “old” sovereignty to “new” sovereignty.  相似文献   
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