Suchergebnisse

Being an interactive process, the success of risk communication needs to ensure the individuals' right to know and influence their attitudes and perceptions of risk. Ubiquitous social media have expanded risk communication channels and innovated ways of risk communication. At the same time, uncertainty also arises with the diversity and variety of social media. Taking the rainstorm disaster in China as an example, this study focuses on factors affecting the individuals' continuance intention of information seeking on Weibo (a social media platform similar to Twitter). Based on 377 valid respondents, this study applied an extended expectation–confirmation model (ECM), from which the results of partial least squares structural equation modeling (PLS-SEM) suggested that continuance intention is positively influenced by factors including effort expectancy, social influence, facilitating conditions, and satisfaction. Among them, satisfaction contributes the most, which helps maintain a balance between performance expectancy and continuance intention. Taking the individuals' continuance intention to seek information on Weibo as the clue, this research provides government agencies with practical advice on how to use social media for more efficient risk communication during disasters and establish emergency preplans to respond to natural disasters.

Abstract
Two important unresolved issues in the evaluation of health care programs are the treatment of indirect costs and the selection of the appropriate discount rate. This paper emphasizes the role of distortionary taxation in addressing these issues. It establishes that: (i) indirect government-paid costs should be treated differently from indirect privately-paid costs; (ii) direct and indirect government costs of a health program should be discounted by the gross rate of return, while consumers' monetary valuations of the program's effects, less direct private costs, should be discounted at the net rate of return; and (iii) the present value of total government costs should be multiplied by a marginal cost of funds before it is comparable to the present value of net private benefits.