Economic evaluations are increasingly utilized to inform decisions in healthcare; however, decisions remain uncertain when they are not based on adequate evidence. Value of information (VOI) analysis has been proposed as a systematic approach to measure decision uncertainty and assess whether there is sufficient evidence to support new technologies.
Scope:
The objective of this paper is to review the principles and applications of VOI analysis in healthcare. Relevant databases were systematically searched to identify VOI articles. The findings from the selected articles were summarized and narratively presented.
Findings:
Various VOI methods have been developed and applied to inform decision-making, optimally designing research studies and setting research priorities. However, the application of this approach in healthcare remains limited due to technical and policy challenges.
Conclusion:
There is a need to create more awareness about VOI analysis, simplify its current methods, and align them with the needs of decision-making organizations. 相似文献
A maximal overlap discrete wavelet transform is used to obtain time scale decompositions of economic forecasts and their errors. The generated time scale components can be used in loss measures and tests for comparing forecast accuracy to evaluate whether the forecasts accurately capture the cyclical features of the data. 相似文献
We analyze the incidence and welfare effects of unit sales tax increases in experimental monopoly and Bertrand markets. We find, in line with economic theory, that firms with no market power are able to shift a high share of the tax burden to consumers, independent of whether buyers are automated or human players. In monopoly markets, a monopolist bears a large share of the burden of a tax increase. With human buyers, however, this share is smaller than with automated buyers, as the presence of human buyers constrains the pricing behaviour of a monopolist. Several control treatments corroborate this finding. 相似文献
This paper offers an analytical framework for analyzing joint and separate decisions by couples in the context of choice experiments
for nonmarket valuation. It reports results from an attribute-based stated preference study in which members of couples are
asked to conduct a choice-experiment first individually and then jointly. The choice context was the selection of which beach to visit while on vacation in Tobago. Available alternatives differed
in attributes related to coastal water and beach quality such as level of coastal development and fish abundance. Tests of
preference equality are reported and structured so as to identify the intra-couple decision-making patterns under taste heterogeneity
with both finite and continuous mixed logit. Results from the latter suggest that women’s preferences are found to be predominant
in the joint choice-experiment. Results suggest caution in using individual choice rather than joint couple choice when valuing
quality changes impacting on couple activities, such as water and beach quality in Tobago, and call for further research on
the topic. 相似文献
This article focuses on the historical experience with U.S. external adjustment, that is, narrowings of the trade deficit. Using data from the past 35 years, we compare economic performance in episodes during which the U.S. trade balance declined against episodes during which it rose. We find that trade balance adjustment has been generally benign: U.S. real gross domestic product growth tended to fall but not to a statistically significant extent; housing construction slumped; inflation generally rose modestly; and although nominal interest rates tended to rise, real interest rates fell. The article then compares these outcomes to those in foreign industrial economies. We find that the economic performance of the United States during periods of external adjustment is remarkably similar to the foreign experience. Finally, we also examine the performance of the foreign industrial economies during the periods when the U.S. trade deficit widened and narrowed. Contrary to concerns that U.S. adjustment will prove injurious to foreign economies, our analysis suggests that the foreign economies fared reasonably well during past periods when the U.S. trade deficit narrowed. ( JEL F32, F41) 相似文献
Recent organizational changes in the health care sector promote greater patient participation in their treatment decisions. How physicians respond to patient-initiated requests for treatment is an issue of considerable policy interest. To study this phenomenon, we introduce the notion of physician-enabled demand and examine empirically whether this behavior responds to competitive pressures in the market and financial incentives associated with different physician payment mechanisms.We find that physician-enabled demand increases with more competition under fee-for-service reimbursement, but decreases with greater competition under managed care. This asymmetric response is quite consistent with our conceptual framework and at odds with alternative interpretations. 相似文献
We investigate the determinants of bilateral international equity and bond portfolio reallocation across a large cross-section of countries spanning over two sample periods: 1997-2001 and 1997-2005. We find that the strongest drivers are the marginal diversification benefits arising from the pure asset component and the initial degree of underweight. This evidence suggests that global portfolio reallocations over the asset boom and bust period were determined by optimal diversification considerations. We also find that due to economic and monetary union (EMU) the weight assigned by euro area investors to investment in euro area countries increased significantly in equity and fixed income portfolios, with a trade diverting effect against the British bond market. 相似文献
Despite its worldwide success, the innovation systems approach is often criticised for being theoretically underdeveloped. This paper aims to contribute to the conceptual and methodological basis of the (technological) innovation systems approach. We propose an alteration that improves the analysis of dynamics, especially with respect to emerging innovation systems. We do this by expanding on the technological innovation systems and system functions literature, and by employing the method of ‘event history analysis’. By mapping events, the interactions between system functions and their development over time can be analysed. Based on this it becomes possible to identify forms of positive feedback, i.e. cumulative causation. As an illustration of the approach, we assess the biofuels innovation system in The Netherlands as it evolved from 1990 to 2007. 相似文献
Project Tiger has been India's premier case of conservation success. Since mid 1990s select Project Tiger Reserves in India were chosen for intensive funding by the Global Environment Facility, the International Development Agency (IDA) and the Government of India under the ‘India Eco-Development Project’. This project marked a modest shift towards debt based funding. The GEF Project has become a benchmark for tiger conservation in India both in terms of management outcomes and scale and scope of funding. However in the absence of large-scale budgetary support or self-generating income flows, it becomes difficult for the GEF type of project to be replicated in other tiger reserves of the country. Debt instruments hold promise as enablers of conservation finance. The paper proposes issue of ‘tiger bonds’ to meet the financial requirements of tiger reserves. Though attractive as a debt instrument, a ‘tiger bond’ could nevertheless entail interest rate and default risks.Bioprospecting activities form good revenue sources for tiger reserves to pay off their debts. However bioprospecting activities do not provide assured returns to tiger reserves. Pharmaceutical companies that prospect for genetic resources and practice ‘real options’ approach to R&D investment planning, adopt multi-phased investment systems and sequential searches that gives them the flexibility to abandon R&D projects. From the point of view of genetic resource providing entities like Project Tiger Reserves, the ‘postponement value’ generated by real options, enables a drug company to tap substitutes for the genetic resources that form the subject matter of bioprospecting contracts. To obviate possible repayment risks by tiger reserves, the paper advocates the institution of ‘put bonds’ as a risk management tool for Project Tiger Reserves in order to hedge themselves against loan defaults arising from possible loss in bioprospecting income. The paper also brings out the mechanics of the issue of tiger bonds in the Indian context. It is argued that a put bond not only hedges default risks but would also aid ‘value discovery’ and payment for ecosystem services as far as the Project Tiger Reserves of India are concerned. 相似文献
This paper presents a basin scale analysis of the Nilüfer River Basin of Turkey, where agricultural, urban, and environmental users compete for scarce water in an environment where climate change and food security present large and growing challenges. It presents results of a basin scale dynamic nonlinear programming model that addresses economic efficiency, climate change, and food security. Its approach can be applied to other water-stressed regions operating in environments of economic and hydrologic constraints on water use. Basin scale modeling approach provides a general framework for formulating water management policies, consistent with the principles underlying the European Union Water Framework Directive. 相似文献