Total and per capita value of food loss in the United States

There are few peer-reviewed or major published studies that estimate the total amount of food loss in developed countries and even fewer attempt to estimate the monetary value. We compiled estimates of the amount and value of food loss for more than 200 individual foods in the United States using the US Department of Agriculture’s Economic Research Service’s Loss-Adjusted Food Availability data and then aggregated these values to estimate the total value of food loss and the value by food group. The results indicate that in 2008, the estimated total value of food loss at the retail and consumer levels in the United States as purchased at retail prices was $165.6 billion. The top three food groups in terms of the value of food loss at these levels are: meat, poultry, and fish (41%); vegetables (17%); and dairy products (14%). Looking more closely at the estimates for the consumer level, this level of loss translates into almost 124 kg (273 lb) of food lost from human consumption, per capita, in 2008 at an estimated retail price of $390/capita/year. Food loss represents a significant share of household food expenditures: our estimates suggest that the annual value of food loss is almost 10% of the average amount spent on food per consumer in 2008 and over 1% of the average disposable income. This consumer level loss translates into over .3 kg (0.7 lb) of food per capita per day valued at $1.07/day. Our estimates of the total value of food loss in the United States and loss estimates by food group are useful in that they can generate awareness of the issue among the food industry members, governments, and consumers. Potential large-scale approaches and economic incentives to mitigate food loss in developed countries are also discussed.     

First of the month effect: Does it apply across food retail channels?

In this study we use detailed daily scanner data on household food purchases to examine monthly food expenditure patterns across food retail channels. We compare food expenditure patterns in high and low-income households comparing those where Supplementary Nutrition Assistance (SNAP) is received in the first 10 days of the month versus households which receive SNAP over the first 15 days of the month. We find that food expenditure patterns vary systematically across the month within different retail channels by income and SNAP payment schedules. Low-income households in early SNAP distribution areas decrease their grocery and mass/club/superstore expenditures at the end of the calendar month and supplement this decrease with increased food expenditures in convenience stores and food away from home. Households in staggered SNAP payment areas show far fewer systematic patterns given the more distributed payment system.     

Review: Consumption-stage food waste reduction interventions – What works and how to design better interventions

Food waste prevention has become an issue of international concern, with Sustainable Development Goal 12.3 aiming to halve per capita global food waste at the retail and consumer levels by 2030. However there is no review that has considered the effectiveness of interventions aimed at preventing food waste in the consumption stages of the food system. This significant gap, if filled, could help support those working to reduce food waste in the developed world, providing knowledge of what interventions are specifically effective at preventing food waste.This paper fills this gap, identifying and summarizing food-waste prevention interventions at the consumption/consumer stage of the supply chain via a rapid review of global academic literature from 2006 to 2017.We identify 17 applied interventions that claim to have achieved food waste reductions. Of these, 13 quantified food waste reductions. Interventions that changed the size or type of plates were shown to be effective (up to 57% food waste reduction) in hospitality environments. Changing nutritional guidelines in schools were reported to reduce vegetable waste by up to 28%, indicating that healthy diets can be part of food waste reduction strategies. Information campaigns were also shown to be effective with up to 28% food waste reduction in a small sample size intervention.Cooking classes, fridge cameras, food sharing apps, advertising and information sharing were all reported as being effective but with little or no robust evidence provided. This is worrying as all these methods are now being proposed as approaches to reduce food waste and, except for a few studies, there is no reproducible quantified evidence to assure credibility or success. To strengthen current results, a greater number of longitudinal and larger sample size intervention studies are required. To inform future intervention studies, this paper proposes a standardised guideline, which consists of: (1) intervention design; (2) monitoring and measurement; (3) moderation and mediation; (4) reporting; (5) systemic effects.Given the importance of food-waste reduction, the findings of this review highlight a significant evidence gap, meaning that it is difficult to make evidence-based decisions to prevent or reduce consumption-stage food waste in a cost-effective manner.     

Reducing food waste through digital platforms: A quantification of cross-side network effects

To fight food waste, retail stores have begun selling perishable food close to the expiration date at discounted prices. To render this form of last-minute discounting effective, digital platforms have been developed with the major aim to connect local retail stores and their consumers by sharing information about these discounts. To sustain digital platforms, platform leaders need to ensure both consumers and retail stores remain active on it. To provide platform leaders with advice on how to create a sustainable digital platform, we examine how retail store activity on the digital platform affects consumer activity, and vice versa (also known as cross-side network effects). By combining a PVAR model and an impulse response function, along with data from a digital platform aimed at food waste reduction, we find that the effect of consumer activity on retail store activity is stronger and more long-lasting than the effect of retail store activity on consumer activity. We discuss the implications of our findings for both retail stores and digital platform leaders.     

Influence of food safety training on grocery store employees’ performance of food handling practices

Food safety training is a method utilized by retail food stores to provide their managers with needed knowledge on how to prevent food borne illnesses, applying Hazard Control Analysis Critical Control Point (HACCP) principles, and help in understanding the requirements of the FDA Food Code as well as state and local food safety policies. For food safety training to be effective, employee behavior must be assessed following training in order to reduce the risks of foodborne illness. The purpose of this study was to determine the effectiveness of manager training and how this training impacted the grocery stores’ performance related to hot/cold self-serve bars. Three grocery store chains were recruited and each chain selected 15 stores to be observed pre- and post-training during set-up, lunch, and tear-down of the bars. After the pre-training observation, managers from eight stores per chain attended a food safety training course (training group), while managers from the remaining seven stores received no additional training (control group). Following the training, all stores were observed to collect post-training data. The information from the observations indicated that the training did not cause a significant change in store performance for a majority of the observed categories. Many state policies only call for training and certification of managers in retail food service establishments. This study showed that it may be time for these policies to be changed to include employee training and certification as well.     

Food environments in Malta: Associations with store size and area-level deprivation

Food environments are potential targets for interventions to reduce obesity prevalence, particularly in island settings that are typically dependent on food imports. This observational study aimed to characterise the availability, quality and price of foods and beverages in a nationally representative sample of grocery stores in Malta using the Nutrition Environment Measures Survey for Stores (NEMS-S) instrument, and to examine the association between area-level density of different types of food stores and the likelihood of children living in these areas being overweight or obese. Fieldwork was carried out between March and May 2014. There was a strong positive correlation between store size and NEMS-S score (p = <0.001), suggesting that smaller grocery stores generally offered a smaller range of products and fewer healthy food/beverage options than larger supermarkets. Across all stores, median prices of certain ‘healthier’ versions of foods were more expensive than their less healthy alternatives. A significant association between risk of childhood overweight, and density of confectionery stores in children’s locality of residence, was found (OR 1.19; 95% CI: 1.04, 1.37). These baseline findings highlight opportunities to improve the food environment in Malta to support more healthful eating, and may be of particular interest to public health practitioners in island settings.     

Does food retail access moderate the impact of fruit and vegetable incentives for SNAP participants? Evidence from western Massachusetts

ObjectivesThis study investigates whether the response of Supplemental Nutrition Assistance Program (SNAP) participants to a 30% incentive on fruit and vegetable spending varies with their access to food retailers.MethodsThe analysis exploits the random assignment of SNAP households in Hampden County, MA, to an intervention group that earned the incentive. Regression models for the impact of the incentive are augmented with measures of food retail access and interactions of random assignment status with food retail access. The main outcome—use of the SNAP benefit—is based on Electronic Benefit Transfer (EBT) card transaction records.ResultsAlthough households that lived within a mile of a participating supermarket spent approximately $2.13 or 19% more per month on targeted fruits and vegetables at participating supermarkets than households that did not live within a mile of a participating supermarket, we found no evidence that the impact of the incentive on SNAP fruit and vegetable spending varies with distance to retailers.ConclusionsThese findings imply that incentives to purchase fruits and vegetables were equally efficacious for SNAP households with high and low access to food retailers.     

Opening the black box of food waste reduction

Surplus food management plays a key role in food waste reduction. This paper addresses the multifaceted concept of food supply chain sustainability by presenting a model of surplus food generation and management (called ASRW, Availability-Surplus-Recoverability-Waste), which encompasses the integrated food supply chain (i.e. business, environmental and social players). The model was developed using a bottom-up approach, by conducting 30 exploratory case studies and iterating theory development and data analysis. Three confirmatory case studies, from different food supply chain stages, are also presented to demonstrate how the model can be used to identify food waste reduction strategies.     

The rising disparity in the price of healthful foods: 2004–2008

Nutrient-dense foods that are associated with better health outcomes tend to cost more per kilocalorie (kcal) than do refined grains, sweets and fats. The price disparity between healthful and less healthful foods appears to be growing.This study demonstrates a new method for linking longitudinal retail price data with objective, nutrient-based ratings of the nutritional quality of foods and beverages. Retail prices for 378 foods and beverages were obtained from major supermarket chains in the Seattle, WA for 2004–2008. Nutritional quality was based on energy density (kcal/g) and two measures of nutrient density, calculated using the Naturally Nutrient Rich (NNR) score and the Nutrient Rich Foods index (NRF_9.3). Food prices were expressed as $/100 g edible portion and as $/1000 kcal. Foods were stratified by quintiles of energy and nutrient density for analyses.Both measures of nutrient density were negatively associated with energy density and positively associated with cost per 1000 kcal. The mean cost of foods in the top quintile of nutrient density was $27.20/1000 kcal and the 4-year price increase was 29.2%. Foods in the bottom quintile cost a mean of $3.32/1000 kcal and the 4-year price increase was 16.1%.There is a growing price disparity between nutrient-dense foods and less nutritious options. Cost may pose a barrier to the adoption of healthier diets and so limit the impact of dietary guidance. Nutrient profiling methods provide objective criteria for tracking retail prices of foods in relation to their nutritional quality and for guiding food and nutrition policy.     

Private voluntary standards in the food system: The perspective of major food retailers in OECD countries

The paper examines the main economic and institutional incentives which have driven major OECD food retailers in their use of private voluntary standards and discusses their growing role in shaping the agri-food system. It is based on interviews with quality and safety directors of major OECD retailers and a brief survey of retailers’ actual buyer practices. Though not all retailers are included, these firms account for over 70% of retail food sales in OECD countries. We find that the growing voice of civil society, changing legal and institutional frameworks, increased market concentration and buying power as well as their integration with financial markets has provided the setting for development of private standards. While food safety and quality standards are seen as key to maintaining and improving reputation as well as against legal liabilities, additional standards such as labour, environmental and animal welfare are also gaining ground as strategies for customer loyalty and market shares. The grass-roots retailer move in the harmonization of food safety standards is seen as an initial step towards a global approach to managing the food system, with harmonization of other standards likely in the future. Given their buyer power, these developments can be viewed as a way of governing the food system and will be important for both OECD and non-OECD food and agricultural sector evolution in the coming years.     

Price dispersion and seller heterogeneity in retail food markets

Price dispersion, i.e. a homogeneous product being sold at different prices by different sellers, is among the most replicated findings in empirical economics. The paper assesses the extent and determinants of spatial price dispersion for 14 perfectly homogeneous food products in more than 400 retailers in a market characterized by the persistence of a large number of relatively small traditional food stores, alongside large supermarkets. The extent of observed price dispersion is quite high. When prices in an urban area (where the spatial concentration of sellers is higher) are compared with those in smaller towns and rural areas, differences in search costs and the potentially higher degree of competition do not yield lower prices. Other counteracting factors, including differences in seller costs and consumer incomes, make prices, on average, higher in the urban area for 11 of the 14 products considered. For many, but not all, the products supermarkets proved to be less expensive than traditional retailers, although average savings from food shopping at supermarkets were extremely low. Finally, the results of the study provide evidence that retailers have different pricing strategies and these differences also emerge for supermarkets belonging to the same chain. The results presented in the paper suggest that a variety of factors play a role in explaining price dispersion. In addition to differences in seller costs, the contemporaneous heterogeneity of retailers (in terms of services provided) and consumers (in terms of search costs and preferences) makes the emergence of monopolistic competition possible as well as allowing small traditional food retailers to remain in business.     

Total and per capita value of food loss in the United States – Comments

There seems to be high interest in the question of food loss and food waste. The comments take up the article in Food Policy on “Total and per capita value of food loss in the United States”. It is argued that the methodology of calculating the food loss is questionable. Consequently, the estimates are highly inflated; therefore the authors do not provide accurate information for policy makers as intended.     

Household history,SNAP participation,and food insecurity

Food security in an important public policy issue. In 2015, approximately 1 in 8 U.S. households experienced food insecurity at some point in the year. Low-income families are at higher risk for food insecurity than other families, and these families may also face higher levels of disruption (e.g., moves, loss of income, or individuals entering or leaving the household) than other families. I use data from the Survey of Income and Program Participation to explore the relationship between food insecurity, the household’s history during the previous year, and SNAP participation. The results indicate that a number of aspects of the household’s recent experience including negative income shocks, moves, and both increases and decreases in household size increase the probability of being food insecure while SNAP participation is estimated to reduce the probability of being food insecure.     

Apparent consumption of caloric sweeteners increased after the implementation of NAFTA in Mexico

The consumption of sugar and sweeteners have been associated with obesity and diabetes, which are public health problems in Mexico. Since 1994, imports of sweeteners for the elaboration of ultra-processed food and beverages increased in the country. This increase in imports may have increased the apparent consumption of sweeteners which could be associated with the implementation of the NAFTA that gradually eliminated tariffs on sugars. However, no study has estimated trends in apparent consumption by type of sugar, and its association with NAFTA in Mexico. Therefore, we analyzed trends in apparent consumption of sugar and sweeteners, and its contribution to energy from 1961 to 2013. We assessed if the gradual implementation of NAFTA in 1994, 1998, 2003 and 2008 was associated with changes in the consumption of sugar and sweeteners in Mexico using the Food Balance Sheet data from the Food and Agriculture Organization of the United Nations. We estimated an interrupted time series analysis with synthetic controls using OECD countries, to assess the association between NAFTA and changes in the type of sugar consumed. We found that between 1961 and 2013, the contribution of sugars to daily energy increased from 243 to 456 (243 to 456 kcal/capita/day). Until 1993, the consumption of sweeteners was 0.20 kg/capita/year and in 2013 reached 12.9 kg/capita/year, representing 20% of total sugar consumption. The consumption of sweeteners increased 2.93 kcal/capita/day after the NAFTA was implemented in 1994. However, there was a reduction in apparent consumption of −2.95 kcal/capita/day between 1998 and 2002, concurrent with the implementation of a 12.5% ad valorem compensatory duty to high fructose corn syrup imports from the US. Consumption increased again 7.7 kcal/capita/day between 2003 and 2007 and up to 10.4 kcal/capita/day after 2008 when the NAFTA was fully implemented. We found a significant increase in the apparent consumption of sweeteners associated with NAFTA but we did not find a conclusive evidence when we estimates total sugars and sweeteners together because we lacked an adequate control group. Sweeteners are mainly used for producing beverages and processed food, so its consumption should be discouraged by improving the existing package of interventions in Mexico, including a 20–30% increase to current taxes that have proven to be effective to reduce sugar sweetened beverages and nonessential energy dense food but whose existing rates are relatively small; improving front of package labelling, monitoring compliance in school regulations for food and beverages sold and improving marketing regulations directed to children.     

Validating the usage of household food acquisition surveys to assess the consumption of ultra-processed foods: Evidence from Brazil

Our ability to research dietary changes over time and their effects on health is limited by challenges in accurately measuring food consumption. In countries where dietary surveys are scarce and rarely nationally representative, household budget surveys may serve as a useful alternative for assessing food consumption. The objective of this study was to evaluate how well household acquisition data reflects the actual intake of ultra-processed foods, using data from the 2008 to 2009 Brazilian Household Budget Survey. The food acquisition module was conducted for all households selected for the survey (n = 55,970) and a subsample corresponding to 25% of the households (n = 13,569) was randomly selected for the individual food intake module, which was conducted for all individuals aged 10 years or older (n = 34,003). Ultra-processed foods were defined as formulations made by the food industry mostly or entirely from substances extracted from foods or obtained with the further processing of constituents of foods or through chemical synthesis, with little if any whole food. Examples included candies, cookies, chips, sugar-sweetened beverages, and ready-to-eat dishes. Our results showed an important agreement between the estimates of ultra-processed food consumption obtained from household acquisition data and individual intake inside-the-home data, particularly for the relative (% of total energy) consumption of these foods. Our study thus indicates that household budget surveys are quite promising for tracking population-level changes in the consumption of ultra-processed foods. The trend toward increased consumption of food away from home in other low- and middle-income countries indicates that future household budget surveys should include the collection of these data.     

Comparison of benefits of radio frequency identification: Implications for business strategic performance in the U.S. and Korean retailers

This study explores a model to compare the benefits of RFID technology on supply chain management by focusing on retail industry. A path model was estimated to examine structural relationships among technological infrastructure, RFID benefits, and business strategic performance in the U.S. (n = 70) and Korean samples (n = 87). Result showed that technological infrastructure was required to more improve inventory management, store operation and demand management, leading to business strategic performance. Especially, data system automation was perceived as a prerequisite for improving inventory management for both countries. Hardware/software application was significantly related to the RFID benefit of inventory management for U.S. retailers, whereas, it was related to the benefits of efficient store operation and demand management for Korean retailers. Business strategic performance was significantly determined by RFID benefit factors (e.g., inventory management and demand management) for U.S. retailers and Korean retailers. The managerial implication for business to business strategic performance in the U.S. and Korean retail industries was discussed from a retailer's perspective.     

Reducing food waste in hotel kitchens based on self-reported data

This study provides insights into the effects of self-reporting on food waste generated in hotel kitchens, and its potential for reducing waste. As a case study, we focus on the generation of breakfast buffet leftovers in four hotels in Germany. To facilitate the self-reporting, we developed a food waste tracking system, which was operated by staff members of the pilot kitchens over 12 months. The self-reporting intervention contributed to improving operational kitchen processes such as refilling the breakfast buffet with less food prepared just-in-time, particularly during the last 30 min of the breakfast time. The self-reported quantities decreased during the first five months of the investigation period and then remained almost constant at a relatively low level. Breakfast buffet leftovers were reduced on average by more than 64.3% of mass, which correlates to annual monetary savings of approximately EUR 9000 per kitchen. The findings of our study demonstrated that breakfast buffet leftovers can be reduced significantly by simple changes and small improvements in daily kitchen routines. However, further research is needed to assess whether self-reporting interventions also contribute to reducing food waste for other types of buffets and food services.     

The development of private fresh produce safety standards: implications for developing Mediterranean exporting countries

Integration into global markets offers the potential for more rapid growth and poverty reduction for poorer countries. However, market barriers within advanced economies to agricultural imports have made it harder for developing countries to take full advantage of this opportunity. This article examines the impact of increasing demands for food safety and quality by European food retailers, and how the fundamental structure and culture of supplier organisations required by European retail chains are a major entry barrier for developing Mediterranean fresh produce exporting countries, and for developing countries in general. The long-term solution for such countries to sustain an international demand for their products lies in structural, strategic and procedural initiatives that build up the trust and confidence of importers/retailers in the quality and safety assurance mechanisms for their produce.     

Indigenous Shawi communities and national food security support: Right direction,but not enough

Food insecurity is a major challenge facing Peru’s Indigenous Shawi communities, who receive food support through national level programs. There is limited research, however, on how national food and social programming support is perceived, received and used among Indigenous communities. We address this research gap by characterizing the preferred diet and coping mechanisms among Shawi Indigenous households, and investigating community perspectives on the national food program and national social supports. We used a mixed methods approach, including a quantitative survey among eleven Shawi communities in the Peruvian Amazon (n = 177 households), and semi-structured interviews with key informants (n = 24). We found that national food programs in Peru rarely provide foods that are desired and preferred among the Shawi, particularly familiar and locally-sourced protein sources such as bushmeat and fish. Food and social programming requirements do not integrate consideration of the remoteness of many vulnerable households, and are considered culturally or linguistically inaccessible to many families. In some cases, foods supplied by national programs are not consumed as they are perceived as unfamiliar. Key opportunities to improve food and social programing include: monitoring and revising eligibility requirements for remote and highly vulnerable households; increasing provision of locally-preferred protein food and familiar food types; avoiding use of written Spanish as a sole source of information to support programming; extending food provision outside of school months; developing contingency plans during education sector strikes; considering hiring of staff with working knowledge of local languages for community distributions; using visual or oral communication rather than written communication to increase accessibility of programs; increasing knowledge on the use and nutritional value of external food; and considering exemptions to school and health eligibility requirements during the rainy season and during sector strikes. Nationally-developed programming that does not consider Indigenous and cultural contexts risks inefficiency, limited improvement of health outcomes, and the potential to increase inequities in Indigenous health.