Food Demand Characteristics in Uganda: Estimation and Policy Relevance

Uganda was highly successful in reducing poverty over the past two decades but made little progress towards household food security. This underlines the need for designing food security interventions customised for household‐specific needs and behaviours. This study estimates Ugandan household demand behaviour with a focus on food consumption paying particular attention to household‐specific characteristics. The results show that preferences to increase calorie‐dense staple consumption, likely associated with food energy deficiency, extend far beyond the percentage of rural Ugandans officially deemed poor. Price elasticities indicate that poor rural households are largely well positioned to compensate staple price increases by substitution as long as they are not already concentrated on the cheapest foods. This flexibility applies less to urban households. The estimated demand elasticities generally vary widely between rural and urban households and depend on expenditure levels. Household‐specific characteristics have significant, sometimes pronounced, influences on demand, as do seasons and regions. The results reflect highly differentiated demand behaviour, which can be utilised to improve the design and evaluation of food security interventions.     

Diet Transition and Supermarket Shopping Behaviour: Is There a Link?

Supermarkets are leading the transformation of food markets in Asia, yet few studies have examined the impact of this so-called supermarket revolution on diet transition and the related nutritional and health implications. We use data from a sample of 1,180 urban households in Indonesia to explore the relation between the increased use of modern food-retail outlets and the emergence of unhealthy dietary patterns. The results of our ordinary least-squares and instrumental variables regressions suggest a negative and significant relation between the share of food expenditure at modern food retailers and the healthiness of consumer food purchases, even after we control for other characteristics that may influence foodconsumption decisions.     

Consumption based estimates of urban Chinese growth

This paper estimates the household income growth rates implied by food demand in a sample of urban Chinese households in 1993–2005. Our estimates, based on Engel curves for food consumption, indicate an average per capita income growth of 6.8% per year in 1993–2005. This figure is slightly larger than the 5.9% per year obtained by deflating nominal incomes by the CPI. We attribute this discrepancy to a small bias in the CPI, which is of a similar magnitude to the one often associated with the CPI in the United States. This result supports the view that Chinese price statistics are reliable. Our estimates indicate stronger gains among poorer households, suggesting that urban inflation up to 2005 in China was “pro-poor,” in the sense that the increase in the cost of living for poorer households was smaller than for the average one.     

Urban Shopping Patterns in Indonesia and Their Implications for Small Farmers

In developing countries, the expansion of supermarkets and other modern food retailers has raised concerns about the potential impact on traditional retailers and fruit and vegetable farmers. Will small farmers, in particular, be squeezed out of this growing, remunerative market by the quality standards imposed by supermarkets? In an attempt to answer this question, we analyse data from a stratified random sample of 1,180 urban households in Indonesia. We find that only a small share of fruits and vegetables are purchased from modern outlets, even among high-income urban households. On the basis of the relation between income and shopping patterns in our data, we project that even after 15 years of income growth, supermarkets will account for less than 40% of urban food spending. The impact of supermarket standards on small farmers may be less dramatic than has been feared.     

The challenges facing empirical estimation of household food (in)security in South Africa

This paper sets out to describe current principle theoretical positions in food security research, describe and compare empirical South African food security studies with key international methodologies and pose research challenges for food security research in the country. Scant available food security studies for South Africa seem to indicate that food insecurity and hunger exist and are likely to increase due to increasing food price trends, greater reliance on cash food purchases and spiralling vulnerability as a result of HIV/AIDS morbidity and mortality. Empirical research is urgently needed to determine the coping strategies of households under ‘normal’ conditions, identify vulnerable households, and monitor the impact of various shocks and stresses on household food security.     

Working Women in an Urban Setting: Traders,Vendors and Food Security in Accra

Data collected from a 1997 household survey carried out in Accra, Ghana are used to look at the crucial role that women play as income earners and securing access to food in urban areas. One-third of the households surveyed are headed by women. For all households, women's labor force participation is high with 75% of all households having at least one working woman. The high number of female-headed households and the large percentage of working women in the sample provide a good backdrop for looking at how women earn and spend income differently than men in an urban area. Livelihood strategies for both men and women are predominantly labor based and dependent on social networks. For all households in the sample, food is still the single most important item in the total budget. Yet, important and striking differences between men's and women's livelihoods and expenditure patterns exist. Compared to men, women are less likely to be employed as wage earners, and more likely to work as street food vendors or petty traders. Women earn lower incomes, but tend to allocate more of their budget to basic goods for themselves and their children, while men spend more on entertainment for themselves only. Despite lower incomes and additional demands on their time as housewives and mothers, female-headed households, petty traders and street food vendors have the largest percentage of food-secure households. Women may be achieving household food security, but at what cost? This paper explores differences in income, expenditure and consumption patterns in an effort to answer this question, and suggests ways that urban planners and policy makers can address special concerns to working women in urban areas.     

Impacts of Food and Energy Price Hikes and Proposed Coping Strategies

Based on sample survey data for the years 2006 and 2007, we find that inflation of food and energy prices in China is moving at a slower pace than in the international market; however, the livelihood of low income groups has been significantly impacted. Urban sample households in low income groups have been shifting from consumption of high value food to lower value substitutes; and all of the rural sample households are reducing their total consumption expenditure in real terms. The Engel＇ s coefficient of the rural household enlarged while their proportion of spending on clothing and energy declined. Farmers＇ households are moving toward more imbalanced diets, and the nutritional status of the poor is apparently deteriorating. The emergency-response measures that the government should implement include stopping subsidies to biofuel producers, who use foodstuffs as inputs, and providing food aid to the poor. The mid-term strategies should include anti-monopoly tactics, improving the market environment for the right competition, and eliminating price distortion. Midterm and long-term socioeconomic policy reform must be undertaken to adjust the social structure, to correct the mechanism of factor price formation, and to transform the pattern of economic growth.     

Urban working‐class food consumption and nutrition in Britain in 1904

This article re‐examines the food consumption of working‐class households in 1904 and compares the nutritional content of these diets with modern measures of adequacy. We find a fairly steep gradient of nutritional attainment relative to economic class, with high levels of vitamin and mineral deficiency among the very poorest working households. However, we conclude that the average unskilled‐headed working household was better fed and nourished than previously thought. When proper allowance is made for the likely consumption of alcohol, household energy intakes were significantly higher still. We investigate the likely impact of contemporary cultural food distribution norms and conclude on the basis of the very limited evidence available that women may have received, on average, about 80 per cent of a man's share of the available food. We adjust energy requirements for likely higher physical activity rates and smaller stature and find that except among the poorest households, early twentieth‐century diets were sufficient to provide energy for reasonably physically demanding work. These results are consistent with recent attempts to relate the available anthropometric evidence to long‐run trends in food consumption. We also find that the lower tail of the household nutrition distribution drops away very rapidly, so that few households are estimated to have suffered severe food shortages.     

Agricultural Research and Urban Poverty: The Case of China

This paper develops a framework to measure the impact of agricultural research on urban poverty. Increased investments in agricultural R&D can lower food prices by increasing food production, and lower food prices benefit the urban poor because they often spend more than 60% of their income on food. Application of the framework to China shows that these food price effects are large and that the benefits for the urban poor have been about as large as the benefits for the rural poor.     

Oil exports,agrarian change and the rural labor process: The ecuadorian sierra in the 1970s

The rapid expansion of the Ecuadorian economy in the 1970s was contingent on the growth of oil exports. Although the benefits were largely distributed in the urban sector, the impact on the rural Sierra was significant. Urban consumer demand led to an expansion in food production, while the high growth rates in the urban services and construction sectors provided employment opportunities for temporary migrants from the rural sector. As a consequence, the small farm economy of the Sierra was able to reproduce itself despite continuing asset scarcity. There was no marked increase in the number of landless households. This has now been reversed by the severe recession that has occurred since 1980. Real incomes have now fallen below their 1970 level in the small farm sector.     

Do home gardens improve the nutrition of rural pre-schoolers in Lesotho?

In this study, the contribution of household gardens to the nutritional status of pre-schoolers in Lesotho was investigated. The anthropometric status of children under five years of age was measured in five randomly selected villages in five districts of Lesotho during November and December 1999. In each district, the nutritional status of an average of 538 children was assessed. Production from household gardens was investigated to determine whether households had access to vegetables throughout the year. Despite a significant association between the presence of home gardens and lower incidences of wasting and underweight, the nutritional status of children in households with or without home gardens in sampled areas is poor. Some 49 per cent of children from households with food gardens were stunted, 29 per cent were underweight, and 24 per cent showed wasting. Many households do not produce enough vegetables rich in vitamin A to meet both their consumption and nutritional needs. Recommendations include intensified production of a wider mix of crops that include starchy crops, vitamin A-rich vegetables and fruit trees to ensure a significant impact on children's nutritional status.     

Foodcrop Demand in Indonesia: A Systems Approach

Aggregate agricultural commodity demand parameters are estimated, based on an application of the Deaton and Muellbauer Almost Ideal Demand System to a seventeen year Indonesian time-series data set of prices, expenditures and consumption availability. The statistical results are generally significant and correctly signed. The revealed demand relationships imply that the Indonesian food Staples are normal goods. Expenditure elasticities are higher for the higher value foodstuffs than for the lower value starchy staples. Furthermore, the demand for rice has become highly inelastic to both own and cross-price interventions. This implies that rice price interventions will require a high degree of fine-tuning in order to stabilise prices effectively, and that low urban rice prices cannot be regarded as an appropriate, or even second best policy instrument for improving nutritional status.

A high degree of Substitution between rice and secondary food crops, and amongst groups of secondary food crops, is identified. The significance of the cross-price elasticities for the secondary food crops suggests that single-market interventions will have non-trivial budget-mediated effects in other commodity markets. The management of a multi-commodity food policy requires that the spillover effects from commodity pricing policy must be taken into account in order to optimise the effects of price policy interventions.     

The distributional impacts of removing energy subsidies in China

The distributional impact on households is an important factor for the acceptance of energy subsidy reform. Based on energy consumption features of the Chinese households at different income levels, this paper adopts an input–output price model to analyze possible impacts of removing energy subsidies on income distribution under different scenarios. Results show that: (1) The distributional impacts of removing subsidies vary by fossil fuels. From the perspectives of combined effects, transport fuel subsidy removal and coal subsidy removal have the strongest and the weakest progressive effects respectively, while the removal of electricity subsidies has a regressive effect. Moreover, the removal of petroleum product subsidies has the greatest impact on households, followed by the removal of electricity and coal subsidies, respectively. (2) Indirect impacts of energy subsidy reform are greater than direct impacts on households. (3) Government price controls can reduce the negative impact of energy subsidy reform. Policy implications are thus summarized. Energy subsidy reform can start from the energy that has the strongest progressive effect and the minimum impact on households. The Chinese government can take certain compensatory measures to mitigate the impact of reform on poor households.     

Household,community, and policy determinants of food insecurity in rural Malawi

This study examines how socio-economic characteristics of households, local conditions, and public programmes are associated with the probability that a farm household in rural Malawi is food insecure. The statistical analysis uses nationally representative data for 8350 randomly-selected households interviewed during 2004/05 for the second Malawi Integrated Household Survey. Regressions are estimated separately for households in the north, centre, and south of Malawi to account for spatial heterogeneity. Results of a multilevel logit model reveal that households are less likely to be food insecure if they have larger cultivated land per capita, receive agricultural field assistance, reside in a community with an agricultural cooperative and relatively high annual rainfall, and are headed by an individual with a high school degree. Factors that positively correlate with household food insecurity are price of maize, price of fertiliser, number of household members, and distance to markets. Implications of these findings for policy are discussed.     

Demographic Transition in China and its Implications

The aim of this paper is to chart the demographic transition in China, identify its proximate causes and analyze its socioeconomic implications with reference to, first, the proportion and composition of the dependent population, second, the age structure of the labor force and, third, the size and composition of households. Defined as a steady deceleration in population growth to a nonrising total, the onset of the demographic transition in 1970 predates the one-child policy. Thus far the transition has had its largest impact on the proportion of children in the population, which has fallen. Next in magnitude is a rise of in the share of working-age adults. These two changes dwarf the rise in the share of the elderly on which much of the discussion in China tends to be focused. The crude dependency ratio has been falling and will continue to do so for another two decades or so. It is pointed out that the change in the age structure has significant distributive implications. The last 20 or so years have seen a substantial change the size distribution of households. The average household has shrunk in size from 4.5 in 1982 to 3.5. This is important because the distribution of the population into households has a significant impact on the household expenditure pattern. In particular, controlling for per capita expenditure, smaller households spend more on food per capita than do larger households.     

The Political Economy of Urban Food Security in Sub-Saharan Africa

Sub-Saharan African cities in the late 1990s face a daunting set of problems including rapid growth, increasing poverty, deteriorating infrastructure, and inadequate capacity for service provision. Even as a renewed debate is shaping up around issues of urban development, there is little attention given to the question of urban food security. Whereas in the 1970s and 1980s, urban food problems in Africa commanded political attention, the nature of urban food insecurity in the 1990s is such that it has tended to lose political importance. This is largely because in the 1970s, the problem was one of outright food shortages and rapid price changes that affected large portions of the urban population simultaneously. The impact of structural adjustment, continued rapid growth, and an increase in poverty make urban food insecurity in the 1990s primarily a problem of access by the urban poor. Under circumstances where the urban poor spend a very large portion of their total income on food, urban poverty rapidly translates into food insecurity. The lack of formal safety nets, and the shifting of responsibility for coping with food insecurity away from the state towards the individual and household level has tended to atomize and muffle any political response to this new urban food insecurity. This paper briefly reviews urban food insecurity and generates a set of empirical questions for an analysis of food and livelihood security in contemporary urban sub-Saharan Africa, and then examines historical and contemporary evidence from Kampala, Uganda, and Accra, Ghana, to suggest some tentative conclusions.     

A Bite of China: Food consumption and carbon emission from 1992 to 2007

In conjunction with the rapid rise in household food expenditures per capita, China's food consumption has increased greatly. At the same time, dietary patterns have changed dramatically, as between 1992 and 2007 China underwent a transition to a more animal-based westernized diet. This rise in food consumption and shift in dietary structure may contribute substantially to climate change. In this paper, an input-output model is used to explore the food-related carbon emissions of Chinese urban households in 1992 and 2007. The results indicate that the physical volume of and economic expenditures on food consumption have increased by 20.7% and 35.9%, respectively. However, food-related carbon emissions per capita in 2007 had decreased nearly 21% compared to emissions in 1992. Based on parametric estimates of environmental Engel Curves and the Oaxaca-Blinder decomposition, the variation in household income may lead to a hypothetical carbon emissions increase of 1.694 tons. However, the improvement in energy use efficiency had offset the impact from income growth and dietary transition and led to the drop in China's food-related carbon emissions from 1992 to 2007.     

An investigation into food-away-from-home consumption in South Africa

Food policy that ignores food-away-from-home (FAFH) in a developing country like South Africa will be misleading given changes in demand for food over time. This study contributes to our understanding of the factors that influence the demand for FAFH in South Africa. Using panel data from the Income and Expenditure Survey, this study analyses the effects of income and socio-demographic variables on FAFH expenditure using a double-hurdle model. The results show that small-sized households headed by younger white females/males and living in an urban settlement are most likely to purchase FAFH while male-headed households spend more than female-headed households. Furthermore, income of the household head is an important determinant of household FAFH expenditures. The income elasticity of expenditure on FAFH is inelastic and a normal good. The small size of the participation elasticities means that growth in the FAFH sector will be driven by households with existing expenditure.     

Why did the industrial diet triumph? The massification of dairy consumption in Spain, 1965–90

The rise of a mass, agri‐industrial diet after the Second World War was crucial for the culmination of the nutritional transition that western countries had been involved in since the second half of the nineteenth century—but why did the industrial diet triumph? This article takes the massification of dairy consumption in Spain 1965–90 as a study case. Using a newly constructed database and qualitative material within an evolutionary socio‐economic framework, the article reaches two conclusions. First, the massification of dairy consumption was linked to most households’ transition to a softer budget constraint, which was driven mainly by increasing household incomes (and only secondarily by consumer price reductions caused by food industrialization). Second, the reason why the softening of the budget constraint played such a major role was that it was joined by a substantial increase in consumer trust in dairy products, which in turn resulted from industrial standardization. The article is in line with recent work that underlines the dietary change brought about by food industrialization, but questions whether the latter's major contribution was of a quantitative, price‐related nature and suggests that more attention should be paid to the qualitative, preferences‐related dimension.     

WIC Participation and Relative Quality of Household Food Purchases: Evidence from FoodAPS

We examine the effect of the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) on the quality of household food purchases using the National Household Food Acquisition and Purchase Survey (FoodAPS) and propensity score matching. A healthy purchasing index (HPI) is used to measure nutritional quality of household food purchases. WIC foods explain the improvement in quality of food purchases, not self‐selection of more nutrition‐conscious households into the program. The improvement in purchase quality was driven entirely by WIC participating households who redeemed WIC foods during the interview week. There was no significant difference between WIC participants who did not redeem WIC foods and eligible nonparticipants. In this sample, there is no evidence that lack of access to clinics has adverse effects on participation nor is there evidence that HPI depends on supermarket access. A supervised machine learning process supports our main conclusion on the importance of WIC foods.