This study employed a choice experiment (CE) to ascertain consumer preferences and willingness to pay (WTP) for non-market food product quality attributes. Data were obtained from a large mail survey and estimated with a random parameter logit model.

Data on the burden of disease, costs of illness, and cost-effectiveness of vaccines are needed to facilitate the
use of available anti-typhoid vaccines in developing countries. This one-year prospective surveillance was
carried out in an urban slum community in Delhi, India, to estimate the costs of illness for cases of typhoid
fever. Ninety-eight culture-positive typhoid, 31 culture-positive paratyphoid, and 94 culture-negative cases
with clinical typhoid syndrome were identified during the surveillance. Estimates of costs of illness were

Previous studies have shown that cost of illness (COI) measures are lower than
the conceptually correct willingness-to-pay (WTP) measure of the economic
benefits of disease prevention. We compare COI with stated preference estimates
of WTP associated with shigellosis in a rural area of China. COI data were
collected through face-to-face interviews at 7 and 14 days after cultureconfirmed
diagnosis. WTP to avoid an episode similar to the one the respondent
just experienced was elicited using a sliding-scale payment card.

Objectives: This study aims to measure the private demand
for oral cholera vaccines in Hue, Vietnam, an area of relatively
low endemicity of cholera, using the contingent valuation
method.
Methods: Interviews were conducted with either the head of
household or spouse in 800 randomly selected households
with children less than 18 years old. Respondents were asked
whether they would purchase an oral cholera vaccine with
different levels of effectiveness and durations of effectiveness

We believe a lack of transparency undermines both the credibility of, and interest in,
stated choice studies among policy makers. Unlike articles reporting the results of
contingent valuation studies, papers in the stated choice literature rarely present simple
tabulations of raw response data (that is, a table or graph showing the percentage
of respondents agreeing to purchase a good or service, or vote for a proposed management
plan as a function of price).

Although it is well known that vaccines against many infectious diseases confer
positive economic externalities via indirect protection, analysts have typically
ignored possible herd protection effects in policy analyses of vaccination programs.
Despite a growing literature on the economic theory of vaccine externalities and
several innovative mathematical modeling approaches, there have been almost no
empirical applications.

This study measures the monetary value households place on preventing malaria in Tigray,
Ethiopia. We estimate a household demand function for a hypothetical malaria vaccine and compute
the value of preventing malaria as the household’s maximum willingness to pay to provide vaccines
for all family members. This is contrasted with the traditional costs of illness (medical costs and lost
productivity).

Many economic analyses of immunization programmes focus on the benefits in terms of public-sector
cost savings, but do not incorporate estimates of the private cost savings that individuals receive from
vaccination. This paper considers the implications of Bahl et al.'s cost-of-illness estimates for typhoid
immunization policy by examining how community-level incidence estimates and information on distribution
of costs of illness among patients and the public-health sector can be used in the economic