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Food consumption.

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There is wide variation in how consumption is measured in household surveys both across countries and over time. This variation may confound welfare comparisons in part because these alternative survey designs produce consumption estimates that are differentially influenced by contrasting types of survey response error. Although previous studies have documented the extent of net error in alternative survey designs, little is known about the relative influence of the different response errors that underpin a survey estimate. This study leverages a recent randomized food consumption survey experiment in Tanzania to shed light on the relative influence of these various error types. The observed deviation of measured household consumption from a benchmark is decomposed into item-specific consumption incidence and consumption value so as to investigate effects related to (a) the omission of any consumption and then (b) the error in value reporting conditional on positive consumption. The results show that various survey designs exhibit widely differing error decompositions, and hence a simple summary comparison of the total recorded consumption across surveys will obscure specific error patterns and inhibit the lessons for improved consumption survey design. In light of these findings, the relative performance of common survey designs is discussed, and design lessons are drawn to enhance the accuracy of item-specific consumption reporting and, consequently, the measures of total household food consumption.

Food Consumption --- Household Surveys --- Recall --- Response Error --- Telescoping

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Food consumption --- Diet --- Food habits --- Nutrition surveys --- Household surveys --- Social aspects

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For the first time in human history, there is food in abundance throughout the world. More people than ever before are now freed of the struggle for daily survival, yet few of us are aware of how food lands on our plates. Behind every meal you eat, there is a story. Hamburgers in Paradise explains how.In this wise and passionate book, Louise Fresco takes readers on an enticing cultural journey to show how science has enabled us to overcome past scarcities-and why we have every reason to be optimistic about the future. Using hamburgers in the Garden of Eden as a metaphor for the confusion surrounding food today, she looks at everything from the dominance of supermarkets and the decrease of biodiversity to organic foods and GMOs. She casts doubt on many popular claims about sustainability, and takes issue with naïve rejections of globalization and the idealization of "true and honest" food. Fresco explores topics such as agriculture in human history, poverty and development, and surplus and obesity. She provides insightful discussions of basic foods such as bread, fish, and meat, and intertwines them with social topics like slow food and other gastronomy movements, the fear of technology and risk, food and climate change, the agricultural landscape, urban food systems, and food in art.The culmination of decades of research, Hamburgers in Paradise provides valuable insights into how our food is produced, how it is consumed, and how we can use the lessons of the past to design food systems to feed all humankind in the future.

Food security. --- Food consumption. --- Food supply --- Food supply --- History. --- Social aspects.

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Gastronomie, food tech, santé, big data et génétique sont, entre autres, au menu de cet Essentiel entièrement inédit. Les chercheurs réunis ici nous éclairent sur les comportements alimentaires et les nouvelles pratiques ou tendances qui façonnent, à travers le monde, l’alimentation de demain. Depuis quelques années, l’alimentation est un objet de controverses... La communication est devenue cruciale pour comprendre les crises alimentaires (scandales sanitaires, OGM, avaries dans la distribution ou la restauration). Le mécanisme est partout le même : pléthorique et contradictoire, l’information circule à la vitesse de la lumière, elle se déforme, affole ou séduit les mangeurs. Les individus, notamment les « millennials », sont pris entre renoncement et pratiques alternatives, nourris par une défiance croissante envers l’industrie agroalimentaire. Ces médiations mettent les chercheurs au défi de comprendre comment les consommateurs construisent leurs systèmes de confiance et réinventent la façon dont nous mangerons demain.

Coutumes alimentaires --- Sociologie --- Aspect moral --- Aliments --- Alimentation --- Consommation --- Food habits --- Food consumption --- Nutrition --- Habitudes alimentaires --- Sociological aspects --- Aspect sociologique --- Food habits. --- Food --- Food consumption. --- Diet --- Social aspects. --- Sociological aspects. --- Health --- Consumption of food --- Cost and standard of living --- Food supply --- Eating --- Food customs --- Foodways --- Human beings --- Habit --- Manners and customs --- Oral habits --- consommation --- santé --- communication --- gastronomie