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There is always a significant amount of speculation as to how the American diet changes over time. Some of speculation is based on what’s good for people, and others base their speculation on various supply and demand issues and the impact of world social changes. However one approach to forecasting the demand for various food products in the American diet is to extrapolate how America’s eating habits would change based on two different scenarios. The first scenario is an cohort model. In this scenario individuals continue their eating habits as they get older. The second scenario is the aging model, with which it is assumed that as people age they adopt the eating habits of the group that they’re moving into.

In this chapter we will evaluate these two scenario-based extrapolation models for projecting food consumption. Data comes from the National Health and Nutrition Examination survey (NHANES), which is conducted regularly by the National Center for Health Statistics (NCHS). It measures levels of consumption with a level accuracy usually not associated with traditional business data services. The specific food items consumed in a 24-hour period are collected for over 30,000 people along with an extensive list of biometric, anthropometric, social, and clinical variables.

The models we evaluate assume that new consumers will enter the market based on projected population growth rates and that consumers “exit” the market based on projected death rates. This chapter applies the models to a subset of the total food variables in the database. Food groups that are pertinent to current issues were selected, such as beef, carbonated soft drinks, and snack foods.

The models forecast food consumption of the by 5 year increments from age 1 to age 85+ an aging cohort model extrapolate how eating habits could be expected to changeover this time interval. The implications of this exercise are essential to the forecasting and management of food processors. The extrapolations may provide guidance for potential changes in capital investment or entry into other markets.

This paper presents a behavioral economics model with bounded rationality to describe an individual's food consumption choices that lead to weight gain and dieting. Using a physiological relationship determining calories needed to maintain weight, we simulate the food consumption choices of a representative female over a 30-year period. Results show an individual will periodically choose to diet, but that diet will reduce weight only temporarily. Recurrence of weight gain leads to cyclical dieting, which reduces the trend rate of weight increase. Dieting frequency is shown to depend on decision period length, dieting costs, and habit persistence.

Theoretical assumptions for explaining travel behaviour changes are frequently limited to disciplinary boundaries. By combining the occurrence of key events with attitudinal dimensions in the ROA model and, furthermore, drawing on the model of cognitive dissonance, an integrated theoretical framework is presented.

We review several streams of research in different fields of travel behaviour research and develop a theoretical framework for guiding future empirical work on travel behaviour research.

The theoretical framework proposes that due to a key event a window of opportunity opens for behavioural change and adaptation processes of attitudes and behaviour.

Further empirical research will have to show the validity and usefulness of the theoretical framework developed. A panel data analysis is proposed with attitudinal variables before and after a certain key event.

Greater parental monitoring is commonly associated with reduced delinquent behavior in adolescents, yet less is known about the extent to which parental monitoring behavior changes after a child is arrested for the first time. The present study examines the extent to which mothers’ monitoring behaviors (i.e., parental monitoring knowledge and effort) change in association with juvenile recidivism after their sons’ first arrest, operationalized through both youth-reported recidivism and official re-arrest records. Mother–son dyads (total N = 634) across three states were interviewed in two waves over 30 months following the youth’s first arrest. Mothers who reported both more monitoring knowledge and effort at Wave 1 had sons who self-reported less recidivism and were less likely to be re-arrested at Wave 2. Repeated sons’ re-arrests were associated with a change in mothers’ monitoring behavior, as both parental knowledge and parental effort significantly increased from Wave 1 to Wave 2 when youth have been re-arrested more than once, relative to youth who had never been re-arrested. No change in monitoring behaviors were observed in association with youth-reported recidivism, and mothers who stated an intention to change their monitoring habits at Wave 1 did not necessarily do so by Wave 2. The findings point to the ability of parents to modulate their monitoring behavior to respond to chronic juvenile offending. This provide an opportunity for practitioners to work with parents to improve their monitoring skills, to ensure rehabilitative gains that result from justice system intervention are maintained in the home via parental monitoring.

In this chapter the aim is to analyse the way the relationship between health and food has been changing at the same time as Spanish society itself. From the beginnings of the consumer society until the present day the modernization process has made its imprint on the guidelines public bodies have issued to the public on caring for their health and diet. Beginning in the 1960s with a welfare idea of a healthy diet, very typical of the decade, and meant for a population with nutritional problems, today we have guidelines for an overfed population. The social trends dominant in each historical moment are shown throughout this transformation process and the dietary recommendations have been part of the social change. However, the perceptions of the administration itself on what constitutes a healthy diet have also made their mark on the criteria. The modernizing nature of the paternalistic administration of the 1960s can be easily seen in contrast with the public bodies of the 1980s competing with the messages from the food and agricultural businesses. As the 20th century drew to a close, dietary advice was in keeping with a background dominated by considerations on the nature of social change and in which both public bodies and citizens trusted in the truths of science as a reference point for correct action. At the beginning of the 21st century, reflexivity and questioning of scientific power appear and also an increase in public preoccupation with food risks. Each stage is analysed relating historical background and dietary recommendations.

Purpose: This study examines the effect of uncertainties on the hospitality industry from different perspectives across the globe. The hospitality industry faces several contemporary issues and challenges that have the potential to impact its growth and development. This study aims to analyse the current problems and uncertainties in the hospitality sector.

Need for the Study: The hospitality industry plays a significant role in the global economy with various services, including accommodation, food and beverage, events, and tourism. However, the sector faces several contemporary issues and challenges that have the potential to impact its growth and development. This study provides an overview of the most significant problems and challenges facing the hospitality industry today.

Methodology: A systematic literature review was conducted to identify and synthesise relevant studies on the effect of uncertainties issues on the hospitality industry. A systematic search of the Web of Science and Scopus databases was conducted to determine relevant studies published between 2010 and 2021. Studies were screened and selected based on pre-defined inclusion and exclusion criteria. A thematic analysis was performed to categorise the uncertainties and issues in the hospitality industry.

Findings: The study identified several uncertainties and issues facing the hospitality industry, including the pandemic uncertainties, financial crisis, whether positive and negative impacts, terrorism attacks on hotels and tourist places, uncertainties in government policies, situational risks like uncertainties, ambiguity, cultural differences, changes in tourist preferences and changing habits of the tourist.

This chapter offers a preliminary investigation into the impact of the COVID-19 pandemic on consumer purchasing behaviour within the grocery retail industry and supports evidence that since the pandemic began at the end of 2019, there have been changes in the demands and behaviours of consumers (Donthu & Gustafsson, 2020). Previous research has reported that the pandemic resulted in retail consumers spending less and saving more (Jorda, Singh, & Taylor, 2020), as well as panic buying (Nazir, 2021), both of which initially contributed to the limited availability of goods. This preliminary study reports upon survey data collected from retail consumers and answers the question ‘What were the changes in consumer behaviour in the grocery sector as a result of the COVID-19 pandemic?’ Findings reveal that an increase in online shopping occurred more distinctly during the first of the UK’s lockdowns, which waned over time. Findings also reveal a lower shopping frequency, but higher shopping spends during lockdown, and that social distancing and discipline were key drivers of this behaviour change. Findings also reveal an intention to maintain a combination of new and old shopping behaviours and habits after lockdown, giving rise to the continuing importance of meeting consumers’ grocery needs online as well as in-store. This chapter further discusses the implications arising from the reported findings.