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221.
The Removal of a Specialist Oversight Body for Local Public Audit: Insights from the Health Service in England
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The abolition of the Audit Commission in England and Wales removes the ‘protector of the public purse’. The oversight body and its audit practice are largely replaced by the private sector regime and audit firms. We analyse the audit market for health service foundation trusts, an area of local public audit that operates without oversight from the Commission. We find evidence of premiums paid to some Big4 firms and that the presence of specialist public service auditors results in fee discounts. The firms limit their liability and assurance of audit quality is reduced under new audit regimes and governance structures. 相似文献
222.
Using a survey of industry participants, and an analysis of price relationships, this paper investigates the demise of the diammonium phosphate futures. The results indicate the diammonium phosphate cash and futures markets were not well linked. The results also suggest that the initial specifications of diammonium phosphate futures contract may have resulted in its use as a forward contract with a high rate of delivery, reducing market participation and limiting liquidity. Ultimately, the contract failed because it was a poor hedging tool, and was perceived by the industry not to offer benefits beyond existing contracting and risk management practices. 相似文献
223.
Graduate students frequently have difficulty defining, developing, and resolving research problems in a manner consistent with the agricultural economics community. We report on a seminar that focuses on professional dialogue to assist graduate students to integrate subject matter courses into independent research proposals. Professional dialogue involves developing arguments to explain and resolve questions where the explanations are supported by warranted evidence and appropriately qualified. The premise of the seminar is that more active problem solvers are developed using professional dialogue to sharpen critical thinking and writing skills. 相似文献
224.
Ana Maria Garcia Perez Marian Garcia Martinez 《Food Economics - Acta Agriculturae Scandinavica, Section C》2007,4(1):31-39
This paper proposes a research framework of the design and configuration of agrifood chains where the focal firm is a second-tier cooperative (group of affiliated cooperatives) in order to assess the alignment of (relational) governance structures and coordination mechanisms in these chains with supply chain management (SCM) principles. The theoretical framework draws on the Relational View of inter-organizational competitive advantage and the Theory of Networks given that inter-cooperative vertical relationships are embedded in horizontal ties between firms (first-tier cooperatives) of social rather economic nature. The conceptual framework developed herein will help theory building in SCM, but most importantly, it will advance current knowledge on the scope of SCM in the agrifood cooperative sector. 相似文献
225.
Begoña Garcia Mariñoso 《The Journal of industrial economics》2001,49(3):281-298
Systems are goods comprising of durables that are sequentially updated with complements. With sequential purchases, if suppliers produce incompatible brands, consumers who upgrade systems with complements of a different brand must replace the durables they own. Thus, the price of these durables is an endogenous switching cost. The paper deals with the concern that firms may use incompatibility to create consumer's switching costs to reduce competition in aftermarkets. However, it shows that, with homogenous durables, and small costs of reaching compatibility, endogenous switching costs increase intertemporal price competition to the extent that producers prefer to have compatible technologies. 相似文献
226.
This paper considers an oligopolistic market for a vaccine, characterized by negative network effects, which stem from the free-riding behavior of individuals engaged in a vaccination game. Vaccine markets often suffer from three imperfections: high concentration, network effects, and a health externality (contagion). The first conclusion of the paper is that the negative network externality is important as a market distortion, as it may lead to significant welfare losses. The second and main part of the paper develops a two-part per-unit subsidy scheme that a social planner could use to target both consumers and producers of vaccines. The scope of such a subsidy scheme to induce the firms to produce the first-best output without network effects (which is the most ambitious first-best target) is investigated. In many cases, while the first-best is attainable, it requires negative prices for vaccines, which amounts to rewarding consumers to induce them to vaccinate. 相似文献
227.
Some previous researchers have argued that trading strategies based on calendar spread time series momentum (STSM) can deliver significant returns (Szymanowska et al. 2014; Boons and Prado 2019), which, if true, is at odds with the efficient market hypothesis. These arguments however, do not exclude the unrealisable futures contract roll yield and are also affected by other empirical and statistical issues that may lead to misleading results. With more than 30 years of data, we investigate STSM in 22 US commodity futures markets. First, we assess whether past spread returns can predict future returns, a necessary condition for the existence of momentum. We find predictability to be very weak after correcting for the issues affecting prior research. Second, we implement STSM-based investment strategies. We compare STSM profits for individual markets and portfolios to profits generated by a simple long-only benchmark strategy that does not require any predictability. STSM does not generate returns statistically different from the benchmark trading strategy, with both strategies generating very low or negative returns. For the momentum to outperform the benchmark strategy, predictability should be three times larger than observed from real data, but would entail substantial downside risk. In sum, the empirical evidence indicates that returns from STSM-type strategies are illusive for the commodities and period studied. Our results strongly suggest that inclusion of unrealisable roll yield generates the illusion of profitable STSM trading strategies in previous research. 相似文献