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1

Beyond a trait view of risk taking: A domain-specific scale measuring risk perceptions, expected benefits, and perceived-risk attitudes in German-speaking populations

100%
Johnson J. G., Wilke A., Weber E. U.
Polish Psychological Bulletin
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2004
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vol. 35
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issue 3
153-163
EN
A German-language scale assessing tendencies to engage in risky behaviors, as well as perceptions of risks and expected benefits from such behaviors, is derived from an English version and validated on 532 German participants. The scale contains 40 items in six distinct domains of risk taking: ethical, recreational, health, social, investing, and gambling. Following a risk-return model of risk taking, perceived-risk attitude is inferred by regressing risk-taking on perceived risk and expected benefits. Risk-taking as well as perceptions of risks and benefits were domain-specific, while perceived-risk attitudes were more similar across domains, thus supporting the use of a risk-return framework for interpreting risk-taking propensity. Gender and cultural comparisons are drawn, and we discuss possibilities for future cross-cultural applications of the scale. AUTHORS' NOTE. The complete DOSPERT-G used in this research, including scale items, instructions, and response scales, can be obtained at the following web address: http://www-abc.mpib-berlin.mpg.de/users/johnson/DOSPERTG.pdf.
2

COST-BENEFIT ANALYSIS IN THE ASSESSMENT PROCESS CONCERNING EFFECTIVENESS OF MUNICIPAL INVESTMENTS CARRIED OUT WITHIN THE FRAMEWORK OF PUBLIC AND PRIVATE PARTNERSHIP (Polish title below)

100%
Magdalena Z.
Optimum. Studia Ekonomiczne
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2010
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issue 3 (47)
43-56
EN
(Polish title: (Analiza kosztów i korzysci w procesie oceny efektywnosci inwestycji komunalnych realizowanych w formule partnerstwa publiczno-prywatnego). The article presents basic information regarding municipal investments and opportunities for their implementation through intersectoral cooperation/partnership with particular emphasis on public private partnership and presents the concept and usefulness of costbenefit analysis in the selection process of alternative investment projects carried out within this framework.
3
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'EX ANTE' AND 'EX POST' ECONOMIC EFFICIENCY OF ROAD PROJECTS BASED ON THE EXAMPLE OF OSTRÓDA BYPASS

100%
Kowalewski M., Soroko J.
Olsztyn Economic Journal
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2009
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vol. 4
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issue 1
83-94
EN
The article focuses on the issues of measurement of cost-benefit of road investment projects both at pre-implementation stage and 'ex post', by applying cost-benefit analysis. The studies used cost-benefit analyses for modernization of Ostróda bypass in Warmia and Mazury voivodeship. As a result of the conducted studies it was established that the 'ex ante' road-bridge costs were underestimated in relation to 'ex post' costs. At the same time the savings on user and environmental costs estimated in 'ex post' analysis were higher than estimated in 'ex ante' analysis by 54,89%. Although the internal rate of return in 'ex ante' analysis was 22,95%, and in 'ex post' analysis 26,97%, this does not prove credibility of 'ex ante' analysis. The studies showed that in pre-implementation analysis there were significant inaccuracies in estimation of both the costs and the benefits related to the investment project.
4

COST-BENEFIT ANALÝZA A RIZIKO V SOCIOEKONOMICKÉM HODNOCENÍ PROJEKTŮ

88%
Sieber P., Hnilica J.
Ekonomický časopis (Journal of Economics)
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2011
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vol. 59
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issue 7
669 – 683
EN
The paper focuses on frequently omitted mathematical and statistical intricacies related to the risk quantification in the process of measuring the value of public projects and policies especially within the most prevalent context of cost-benefit analysis (CBA). First, it deals with the appropriateness of inputs into cost-benefit analysis usually expressed in terms of expected values rather than option prices. After discussion of theoretical findings and practical relevance it hastens to conclude that expected values are well-acceptable if all limited restrictions are properly taken into any considerations. Then it shows the practical problems in quantifying expected values of net social benefits based just upon point estimates and suggests applying Monte Carlo simulation to derive them instead.
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