Search results for "Lua"
showing 10 items of 3286 documents
Dealing with preference uncertainty in contingent willingness to pay for a nature protection program: A new approach
2013
In this paper, we propose an alternative preference uncertainty measurement approach where respondents have the option to indicate their willingness to pay (WTP) for a nature protection program either as exact values or intervals from a payment card, depending on whether they are uncertain about their valuation. On the basis of their responses, we then estimate their degree of uncertainty. New within this study is that the respondent's degree of uncertainty is "revealed", while it is "stated" in those using existing measurement methods. Three statistical models are used to explore the sources of respondent uncertainty. We also present a simple way of calculating the uncertainty adjusted mea…
Carbon sequestration in French agricultural soils: A spatial economic evaluation
2021
International audience; Soil organic carbon sequestration measures entail costs to farmers with different individual characteristics and located in different areas. A cost‐effective analysis taking into account these heterogeneities is crucial for developing effective public policy aimed at increasing carbon sequestration. We undertake such an analysis focusing on three soil organic carbon sequestration measures: no‐till, extension of temporary grasslands, and hedgerows. Through an optimization model applied to France, our results show that only extension of temporary grasslands can store carbon at low cost, though their potential for carbon sequestration is also low. For an ambitious carbo…
Young people' s willingness to pay for environmental protection
2021
Abstract The cost of the ongoing degradation of natural capital will inevitably be borne by the younger generations. And, as the wave of school strikes for action against climate change have proved, they do not want their voice to be ignored. Discrete Choice Experiments are increasingly used for the valuation of environmental goods, but they have never been conducted with minors. We designed and administered such an experiment to elicit the willingness of children and teenagers, aged 8–19, to pay for environmental projects. The results suggest that their marginal willingness to pay is higher for projects in their own country (Italy) and that the utility of environmental protection is greate…
Stock earnings and bond yields in the US 1871–2017 : The story of a changing relationship
2021
Abstract Using historical data spanning almost 150 years, we examine whether there is a long-run equilibrium relationship between the stock's earnings and bond yields. The novelty of our econometric methodology consists in using a vector error correction model where we allow multiple structural breaks in the equilibrium relationship. The results of our analysis suggest the existence of an equilibrium relationship over 1871–1932 and 1958–2017. On the two historical segments, our analysis finds that the stock's earnings yield followed the bond yield in both the short run and long run, but not the other way around. Perhaps the most important and surprising finding of our empirical study is tha…
Impacto del riesgo de interés sobre las acciones del sector bancario español
2009
RESUMENEste trabajo examina la exposicion del sector bancario espanol al riesgo de interes en el ambito de la metodologia GARCH, prestando atencion no solo al impacto de los cambios en el nivel de los tipos de interes sino tambien al efecto de su volatilidad sobre la distribucion de los rendimientos de las acciones bancarias. Los resultados obtenidos muestran que tanto las variaciones como la volatilidad de los tipos de interes tienen un impacto negativo y significativo sobre el rendimiento de las acciones de las entidades financieras, existiendo una relacion directa entre el tamano de las entidades y su grado de sensibilidad ante los movimientos y volatilidad de los tipos de interes.
Pricing the Option to Surrender in Incomplete Markets
2010
New international accounting standards require insurers to reflect the value of embedded options and guarantees in their products. Pricing techniques based on the Black and Scholes paradigm are often used; however, the hypotheses underneath this model are rarely met. We propose a framework that encompasses the most known sources of incompleteness. We show that the surrender option, joined with a wide range of claims embedded in insurance contracts, can be priced through our tool, and deliver hedging portfolios to mitigate the risk arising from their positions. We provide extensive empirical analysis to highlight the effect of incompleteness on the fair value of the option.
School grading and institutional contexts
2011
We study how the relationship between students' cognitive ability and their school grades depends on institutional contexts. In a simple abstract model, we show that unless competence standards are set at above-school level or the variation of competence across schools is low, students' competence valuation will be heterogeneous, with weaker schools inflating grades or flattening their dependence on competence, therefore reducing the information content and comparability of school grades. Using data from the OECD-PISA 2003 Survey, the model is applied to a sample of four countries, namely Australia, Germany, Italy, and the Netherlands. We find that in Australia, schools' heterogeneity does …
Environmental damage evaluation in a willingness-to-accept scenario: A latent-class approach based on familiarity
2015
In this paper we report on the results of the application of a latent class model that was designed to identify and characterize unobserved preference heterogeneity in the context of a willingness-to-accept (WTA) framework involving negative environmental externalities stemming from the expansion of the Port of Valencia. We investigated the hypothesis that respondents with greater familiarity with the targeted good and any related environmental damage would demand more compensation; that is, they would have a significantly higher WTA. Based on respondents' familiarity with the Port of Valencia and their pre-existing knowledge about the negative consequences of its potential expansion three …
Protest beliefs in contingent valuation: Explaining their motivation
2006
Abstract The definition and treatment of protest responses in contingent valuation (CV) can have a significant influence on the estimated values of the good in question if these responses are censored. In order to understand how protest responses are motivated, in a CV about forest biodiversity in Germany we used an item battery to identify respondents' protest beliefs. The items were measured for all respondents, irrespective of their willingness to pay (WTP) in principle. Then, a scale based on these beliefs is taken as a dependent variable of regression analyses. In addition to environmental concern we used norms, the warm glow of giving and dilemma concern as further explanatory variabl…
The relationship between environmental values and income in a transition economy: surface water quality in Latvia
2002
A contingent valuation study measured citizen willingness to pay (WTP) for an improvement in surface water quality in Latvia. The average respondent was willing to pay 0.7 per cent of household income for the environmental improvement, but that amount was much less than needed to finance the required investments in treatment facilities. While the income elasticity of WTP for the average resident was low (0.56), it increases as income increases, reaching 0.9 at an income level double the current average. As real incomes increase in Latvia, the demand for environmental quality by citizens can be expected to increase substantially.