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Exploring kitchen science : 30+ edible experiments & kitchen activities
\"Join the world-famous Exploratorium on a curious and tasty expedition through your kitchen, where you'll learn to flash-freeze ice cream with way-cool dry ice, create dyes with your favorite fruits and veggies, see your food glow in the dark, whip up oobleck, and more\"-- Page 4 of cover.
Book
Inferred and Stated Attribute Non-attendance in Food Choice Experiments
We review the current literature on attribute non-attendance in stated choice and use data from beef and chicken choice experiments using both inference and the respondents' own statements. Inference is based on panel data analysis by mixed logit models of choice with both discrete and continuous mixtures of coefficients, and is conditional on the observed pattern of choice. Information from respondent statements on non-attendance is directly embedded in the specification of the indirect utility function. Results show no clear winner between the inferential approaches, but the inference based on constrained latent class panel models better matches the observed data.
Journal Article
Eat your science homework : recipes for inquiring minds
\"Hungry readers discover delicious and distinct recipes in this witty companion to Eat Your Math Homework. A main text explains upper-elementary science concepts, including subatomic particles, acids and bases, black holes, and more. Alongside simple recipes, side-bars encourage readers to also experiment and explore outside of the kitchen. A review, glossary, and index make the entire book easy to digest.\"--Provided by publisher.
Book
Internal and External Validity in Economics Research: Tradeoffs between Experiments, Field Experiments, Natural Experiments, and Field Data
Economics is about tradeoffs, and their approach to designing and executing economics research is not immune to this core economic principle. In this article, the authors discuss two key dimensions of validity -- internal and external validity -- and underscore the natural tension that arises in choosing a research approach to maximize both types of validity. They propose that the most common approaches to empirical research -- the use of naturally occurring field/market data and the use of laboratory experiments -- fall on the ends of a spectrum of research approaches, and that the interior of this spectrum includes intermediary approaches such as field experiments and natural experiments. They note that multimodal approaches can ease the tensions between internal and external validity. Like nearly any topic considered by economists, they find that their decisions concerning research design in economics offer no free lunches.
Journal Article
ARE CONSUMERS WILLING TO PAY MORE FOR TRACEABILITY? EVIDENCE FROM AN AUCTION EXPERIMENT OF VIETNAMESE PORK
This study aims to conduct the consumer's willingness to pay (WTP) for traceable pork products by using the auction experiments methods, estimate the factors affecting to the WTP and identify the demand for specific information in traceability systems from information of consumers in Vietnam. The results indicated that, the WTP for traceable pork products of consumers is higher than 24%, comparing to the non-traceable pork products. The frequency ofpork consumption, gender, age, education, health self-report and consumer's attitude from risk of unsafe pork products were the influencing factors to the consumer's WTP for traceable pork. The necessary information of traceability, suggested by consumers, included: information of additives included in the purchased pork, place of origin, expiration date and quality certificate.
Journal Article
30-minute edible science projects
\"Step-by-step instructions and photos guide readers through projects that introduce them to the science of food. While shaking up butter and cooking candy, readers will learn about molecules, matter, and taste with these fast and fun projects\"--Amazon.
Book
Fairness, Farmers Markets, and Local Production
A wealth of evidence has begun to accumulate in the growing field of behavioral and experimental economics that people care not only about their own monetary well-being but also the well-being of others. Even though it has not been directly addressed, consumer preferences for \"alternative\" production systems might be influenced by people's preferences for fairness and distribution of benefits in the food supply chain. Supporters of farmers markets often also support equity-driven social movements, such as Food Justice, animal welfare, and Fair-Trade. The study elicits people's other-regarding preferences through a framed field experiment in which people bid to buy tickets that provide monetary payouts to themselves and different types of farmers. The experimental results, coupled with information obtained in a follow-up survey, shows that a portion of the WTP premium for local food products can be directly attributable to other-regarding preferences for local farmers. They found that people preferred money allocations going to local farmers over identical allocations to nonlocal farmers.
Journal Article
Reduced habitat quality increases intrinsic but not ecological costs of reproduction
Although the costs of reproduction are predicted to vary with the quality of the breeding habitat thereby affecting population dynamics and life‐history trade‐offs, empirical evidence for this pattern remains sparse and equivocal. Costs of reproduction can operate through immediate ecological mechanisms or through delayed intrinsic mechanisms. Ignoring these separate pathways might hinder the identification of costs and the understanding of their consequences. We experimentally investigated the survival costs of reproduction for adult little owls (Athene noctua) within a gradient of habitat quality. We supplemented food to nestlings, thereby relieving the parents’ effort for brood provisioning. We used radio‐tracking and Bayesian multistate modeling based on marked recapture and dead recovery to estimate survival rates of adult little owls across the year as a function of food supplementation and habitat characteristics. Food supplementation to nestlings during the breeding season increased parental survival not only during the breeding season but also during the rest of the year. Thus, the low survival of parents of unfed broods likely represents both, strong ecological and strong intrinsic costs of reproduction. However, while immediate ecological costs occurred also in high‐quality habitats, intrinsic costs carrying over to the post‐breeding period occurred only in low‐quality habitats. Our results suggest that immediate costs resulting from ecological mechanisms such as predation, are high also in territories of high habitat quality. Long‐term costs resulting from intrinsic trade‐offs, however, are only paid in low‐quality habitats. Consequently, differential effects of habitat quality on immediate ecological and delayed intrinsic mechanisms can mask the increase of costs of reproduction in low‐quality breeding habitats. Intrinsic costs may represent an underrated mechanism of habitat quality affecting adult survival rate thereby considerably accelerating population decline in degrading habitats. This study therefore highlights the need for a long‐term perspective to fully assess the costs of reproduction and the role of habitat quality in modifying these costs. With this experimental study, we show that immediate ecological costs of reproduction occur independent of habitat quality, while long‐term intrinsic costs only accumulate in habitats of low quality. Importantly, immediate costs paid during the breeding season were high, yet intrinsic costs carrying over to the post‐breeding season accumulated to a comparable magnitude (of c. 20%) over the rest of the year. Intrinsic costs may therefore represent an underrated mechanism of habitat quality affecting adult survival rate thereby considerably accelerating population decline in degrading habitats.
Journal Article