BACKGROUND Health state valuation exercises can be conducted online, but the quality of data generated is unclear. OBJECTIVE To investigate whether responses to binary choice health state valuation questions differ by administration mode: online versus face to face. METHODS Identical surveys including demographic, self-reported health status, and seven types of binary choice valuation quest...

Background: Health state valuation exercises can be conducted online, but the quality of data generated is unclear. Objective: To investigate whether responses to binary choice health state valuation questions differ by administration mode: online versus face to face. Methods: Identical surveys including demographic, self-reported health status, and seven types of binary choice valuation questi...

BACKGROUND The identification of the attribution of economic value that users of a health system assign to a health service could be useful in planning these services. The method of contingent valuation can provide information about the user's perception of value in monetary terms, and therefore comparable between services of a very different nature. This study attempts to extract the economic ...

The value of a health state is typically described relative to the value of an optimal state, specifically as a ratio ranging from unity (equal to optimal health) to negative infinity. Incorporating potentially infinite values is a challenging issue in the econometrics of health valuation. In this paper, we apply a directional statistics approach based on the assumption of wavering preference. ...

OBJECTIVE This report aims to 1) explain and illustrate the use of the subjective well-being (SWB) approach as an alternative health-valuation methodology by estimating the monetary value of five general categories of illness in Costa Rica, and 2) foster comparative research on the advantages and limitations of alternative approaches to health valuation. METHOD Use of the SWB valuation approa...

BACKGROUND Contingent valuation (CV) is used to estimate the willingness to pay (WTP) of consumers for specific attributes to improve the quality of health care they received in three hospitals in Bangladesh. METHODS Random sample of 252 patients were interviewed to measure their willingness to pay for seven specified improvements in the quality of delivered medical care. Partial tobit regres...

The time trade-off (TTO) valuation technique is widely used to determine utility values of health outcomes to inform quality-adjusted life-year (QALY) calculations for use in economic evaluation. Protocols for implementing TTO vary in aspects such as the trade-off framework, iteration procedure and its administration model and method, training of respondents and interviewers, and quality contro...

Let R be a ring and V be a matrix valuation on R. It is shown that, there exists a correspondence between matrix valuations on R and some special subsets ?(MVPR) of the set of all square matrices over R, analogous to the correspondence between invariant valuation rings and abelian valuation functions on a division ring. Furthermore, based on Malcolmson’s localization, an alternative proof for t...

let r be a ring and v be a matrix valuation on r. it is shown that, there exists a correspondence between matrix valuations on r and some special subsets ?(mvpr) of the set of all square matrices over r, analogous to the correspondence between invariant valuation rings and abelian valuation functions on a division ring. furthermore, based on malcolmson’s localization, an alternative proof for t...