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Summary  Competition authorities are increasingly measuring the effects of their enforcement actions, seeking a robust justification for the proliferation of competition policy. We highlight the importance of identifying the right counterfactual against which to measure effects, and set out the relevant categories of costs and benefits. We then explore how a balance can be struck between the benefits and inherent limitations of these measurement exercises. Relatively crude analyses of cartel action benefits can be sufficient to achieve public legitimacy for competition policy. Assessing the effects of merger and conduct inquiries is often ambiguous, but could be used to improve decision-making processes. Director and Managing Consultant, respectively, at Oxera, Oxford and London. The valuable comments of Fod Barnes, Kerry Hughes and an anonymous referee are gratefully acknowledged. The opinions expressed in this article are those of the authors alone.  相似文献   
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The paper provides a closed form solution for the value of a firm which costlessly can change its mode of operation between two activities. The technology is such that production is zero from the inactive production line. In addition we assume that the production potential on any production line is idle when not operated, else the production follows a geometric Brownian motion. Although this framework is rather general, it is motivated by the problem to produce a natural resource located in two separate wells/ores, using a single (flexible) production unit. For what seems to be reasonable parameter values, the flexible unit is seen to achieve a surprisingly large value relative to the value achievable by a comprehensive unit, producing both alternatives simultaneously. In addition it is interesting to note that switching might occur even if the active production line gives the highest immediate income.  相似文献   
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Advanced product development distinguishes itself by being surrounded by a “cloud of technology spillovers” available to external users in proportion to their competence to commercialize them. The local capacity to commercialize spillovers is experience based and hence more narrow than the range of innovations. The cloud will therefore be incompletely explored. While the value of the cloud to society may be greater than the development investment, the value captured by the producer is often not sufficient to make the product development privately profitable. The producer faces the property rights problem of how to charge for the dual product it develops, the product itself and as much as possible for the technology cloud. The public and private customers, however, appreciate the situation differently. While the former appears in the double customer role of being interested in both the product procured and the spillover benefits to society, the latter is not interested in paying for spillovers that only benefit society. Marketing the product, therefore, involves the ability to present a credible case for the economic value to society of the spillovers. To do that, a theory is needed that demonstrates both the user value to the customer, and the entrepreneurial capacity of the economy to commercialize the spillovers. The theoretical argument is illustrated with the case of downstream industrial business formation around Swedish military aircraft industry.  相似文献   
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Ein Fallbeispiel - Frau Schneider erkrankte im Alter von 73 Jahren an einer akuten myeloischen Leuk?mie (AML). Die eingeleiteten Therapien griffen nicht. Schlie?lich stimmte sie der Therapiebegrenzung zu. Vor welchen klinischen und normativen Herausforderungen stand das Behandlungsteam? Welche L?sungsans?tze für das praktische Vorgehen k?nnen aus diesem Fall geschlussfolgert werden?  相似文献   
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Permit markets are celebrated as a policy instrument since they allow (i) firms to equalize marginal costs through trade and (ii) the regulator to distribute the burden in a politically desirable way. These two concerns, however, may conflict in a dynamic setting. Anticipating the regulator's future desire to give more permits to firms that appear to need them, firms purchase permits to signal their need. This raises the price above marginal costs and the market becomes inefficient. If the social cost of pollution is high and the government intervenes frequently in the market, the distortions are greater than the gains from trade and non-tradable permits are better. The analysis helps to understand permit markets and how they should be designed.  相似文献   
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I quantify the effects of conglomeration on credit risk by first computing theoretical default probabilities for conglomerates and their hypothetical stand‐alone counterparts and then mapping them into physical probabilities using a comprehensive database of corporate failures. Comparing the credit risk of conglomerates with that of hypothetical stand‐alone firms, I report significant reductions in the annual probability of default for small firms. My results support the proposition that managers can have a strong incentive to engage in conglomeration, even if it reduces shareholder value and show for which firms this is the case.  相似文献   
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We evaluate two main views on pursuing financial stability within a flexible inflation-targeting regime. It appears that potential gains from an activist or precautionary approach to promoting financial stability are highly shock dependent. We find support for the conventional view that concern for financial stability generally warrants a longer target horizon for inflation. The preferred target horizon depends on the financial stability indicator and the shock. An extension of the target horizon favoring financial stability may contribute to relatively higher variation in inflation and output.   相似文献   
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