Food waste paradox: antecedents of food disposal in low income households

This article aims to identify antecedents of food waste among lower‐middle class families – a paradox, given the financial constraints this population faces. The importance of this research is evident in escalating environmental pressures for better use of our planet's scarce resources. Given that most of the world is low‐income, any behavioral change in this population is likely to have a considerable impact. Empirical data were collected from 14 lower‐middle income Brazilian households, based on observations, in‐depth interviews, photographs and a focus group (n = 6). Five major categories of food waste antecedents were identified: (1) excessive purchasing, (2) over‐preparation, (3) caring for a pet, (4) avoidance of leftovers and (5) inappropriate food conservation. Several subcategories were also found, including impulse buying, lack of planning and preference for large packages. Surprisingly, findings show that strategies used to save money – such as buying groceries in bulk, monthly shopping trips, preference for supermarkets and cooking from scratch – actually end up generating more food waste. This mitigates the savings made during the purchasing phase.     

Rural families food intake behaviour in relation to livelihood diversification,income differences and family size

The livelihood diversification significantly contributes to the family income having effect on food varieties' consumption in rural families of different sizes. This study investigated the food intake differences among rural families considering different income levels and family sizes. Moreover, barriers faced by the rural families to increase the consumption of food varieties were also analysed. A total of 200 rural families were selected through multistage purposive and random sampling techniques in the Punjab province of Pakistan and were directly interviewed and categorized first into low and high livelihood diversified families. The food groups were derived by assigning individual food to conventional food group taxonomies, and two‐way ANOVA (4 (income groups) × 3 (family size groups) was separately conducted for low and high livelihood diversified families. The income instability, prices of food items, market distance and storage were perceived as barriers for increasing food consumption. The high livelihood diversified families significantly and regularly consumed more food items than low diversified families. The rural households both in low and high livelihood diversified family categories having low income and high family size consumed less expensive food items. The regular consumption of fruits, bakery products, and livestock and dairy items was greatly associated with high income and small family size. One of the most remarkable findings of the multivariate multiple regression model was the households belonging to the lowest income group were significantly lowering the consumption of livestock and dairy food items as the family size increased from small to large family size. The interaction effect was highly associated with per capita income because the consumption of food items increased with the rise in income irrespective of the family size. However, family size groups showed different patterns of food intakes with different income levels. Government agencies should assist rural households to diversify their income portfolios for better nutrition.     

Expenditure patterns on food and non food items of Khayelitsha households,Western Cape,South Africa

Food insecurity or lack of access to adequate and nutritious food is a major determinant of under‐nutrition. Expenditure patterns accompanied by unemployment, low level of education, inflation and high food prices have a direct negative impact on food availability within households (Moller, 1997). Ghany and Schwenk (1993) found that as household income increases, the proportion of expenditures on food decreases, the proportion of expenditures on clothing, rent, fuel, and light stayed the same and that of sundries increased. The aim of this study was to investigate household expenditure patterns on food and non‐food items in Khayelitsha. A total of 20 households (10 from the formal and 10 from the informal settlements) were randomly selected from those willing to participate in the study. A questionnaire with open ended and closed questions was used to collect data. The questionnaire comprised four sections namely: biographical information, socio‐economic information which used wealth quintiles to assess households’ social economic status, total expenditure information and a food/hunger scale was used to assess households’ food availability. The findings revealed that households from informal settlements spent more money (62.2%) as a proportion of their income on food compared to households from the formal settlement (39%). There was higher unemployment rate (100%) at the informal settlement compared to the formal settlement (40%). Wealth quintiles scales did not reflect the social status of the households as equipment and assets owned by households were only used as fallback position during times of economic hardships. Households used different purchasing strategies; food and non‐food items were mainly purchased from outside the township (60%). Forty percent of the households bought their items from local shops and spazas because they allowed them to buy items whenever little money was available or to take items on credit. All the respondents preferred to buy bread and small items from spazas and local shops. Prices of items in the spazas and local shops were higher compared to prices of items in bigger shops outside the townships. The food/hunger scale and wealth quintiles showed that informal settlement households were more food insecure (as they were all unemployed and about 50% of the households ran out of food always) and had fewer assets compared to the formal settlement households. The implications of these findings underscore the need to improve socio‐economic conditions of low resource households through empowerment programs. These programs can be in the form of training in management/decision making, work related skills/literacy (to help them access formal employment), business management/income generation skills (to help them to be self‐employed), budgeting, and food gardening. This approach can help to increase the resource base and alleviate food insecurity in low resource households.     

Purchases,food habits and waste management in households: exploring responses to local composting

This exploratory study focuses on processes of food purchases, food habits and waste management in the household. The purpose of the study has been to investigate what influences the amount and type of waste generated in the household. Information was collected in 13 households in a residential area close to central Göteborg, Sweden, where a separation of waste and local composting experiment had just been launched. The households registered purchases, meals served, and weight of biodegradable waste, for 2 weeks. In-depth interviews were also carried out. At a general level, environmental concern was found not to influence purchase behaviour. The results show that the households produced a higher level of biodegradable than non-biodegradable waste. Variations between families were found to be considerable. There are clear indications that the experience of participation in the experiment which required local composting per se was a very powerful determinant for increasing the awareness in families of the relationship between consumption and the nature and quantity of waste produced.     

A semiparametric analysis of calorie response to income change across income groups and gender

This paper estimates the relationship between calorie intake and income within a semiparametric framework, which allows for heterogeneity across individuals and possible nonlinearity in the relationship. The results, using a panel data set from rural south India, indicate that the income elasticity of calorie intake is small but is nonzero and statistically significant, and that the elasticity is higher for the relatively poor households in the sample. The semiparametric analysis also brings out some interesting patterns of calorie response to income change at different income levels for males and females.     

Use of microcredit for household income and consumption smoothing by low income communities

This paper discusses findings of a study that investigated income, savings and consumption patterns of low income people and critical factors that influence the use of microcredit—a form of small instant loans targeted for low income people—for household income and consumption smoothing. The sample of the study consisted of households from low income communities living in a lower‐middle income country—Sri Lanka. It was found that microcredit borrowers were using the loans for purposes that can be identified as income and consumption smoothing, which is beyond the ideas and intended practice of microcredit. The findings suggest that the consequences of using microcredit for income and consumption smoothing could be costly for households and the society at large.     

Use of focus groups in business ethics research: potential,problems and paths to progress

The use of focus groups is a well-established qualitative research method in the social sciences that would seem to offer scope for a significant contribution to the advancement of knowledge and understanding in the field of business ethics. This paper explores the potential contribution of focus groups, reviews their contribution to date and makes some recommendations regarding their future use. We find that, while the use of focus groups is not extensive, they have been utilised in a non-negligible number of studies. Focus groups are usually used as a supplementary method, often as part of the development of a research instrument. Whether used on their own or in conjunction with other methods, we find that in the majority of cases there is insufficient information for a reader to judge that the method has been carried out well and hence that the ‘findings’ may be trusted. Nor is it easy for future researchers to learn about the practical application of the method in business ethics contexts. We therefore recommend improved reporting in future published studies. Based on an analysis of a subsample of papers that provided a reasonable level of methodological detail, we provide further insights into, and recommendations for, the use of focus groups in business ethics research.     

Growth,income distribution and unemployment in a two-sector economy

We build a two-sector general equilibrium growth model with capital-intensive consumption goods and a labour-intensive investment goods sector to investigate the coexistence of growth and unemployment. The model uses heterogeneity in saving behaviour, introduces an effective demand problem, has full employment of capital with input non-substitutability and shows that the aggregate labour employment is determined by available capital along with commodity market equilibrium. The long-run growth may not be balanced, and under biased growth, the level of unemployment may monotonically increase or decrease over time, or may first increase (decrease) and then decrease (increase). Such possible unemployment paths help us tightly define “jobless growth”.     

Choices and using of washing machines in Chinese households

Rapid urbanization and improvement in living standard skyrocket the demand for washing machines in Chinese households, especially in urban households. This paper discusses the owning rate of different types of washing machines, using frequency, load capacity, factors affect choices of washing machines, etc. in Chinese households and suggest possible strategies in choosing washing machines considering economic expenditure. Quantitative information relates to choice and use of household washing machines was collected through in‐depth interview of the key person who carried out household laundering. A total of 993 households that were randomly selected in eight provinces and a municipality were successfully interviewed. Impeller washing machine is still in a dominate place whereas drum washing machine increasing steadily. Households with higher income tend to buy drum washing machines for their better performances in detergency and superior quality. Load capacity between 4 and 6 kg is very common at present. Larger load capacity is a trend of washing machine choices in Chinese households. Washing machine with better energy efficiency is more popular for its lower expenditure in use. This is more obvious for drum washing machine. Washing machines are often used once every 1 or 2 days in summer, whereas one wash per week and two washes per week are very common in winter. Consumer will expend much more money with the choice of a drum washing machine, not only for paying for the machine, but also for the consumed electricity and water and wastewater discharges in every use.     

Consumers' awareness,acceptance and attitudes towards functional foods in Turkey

The aim of the present study was to investigate consumers' awareness, acceptance and attitudes towards functional foods in Turkey. Eight hundred and eight people participated in this study: aged between 20 and 80 years, 38.5% were male and 61.5% were female. Participants were given a questionnaire and were asked to fill it in by themselves to minimize the influence of the interviewer. Results indicated that socio‐demographic characteristics such as age, education level and income level are important indicators of consumers' awareness and consumption of functional food. The results show that the female respondents were 2.987 times more aware of functional food than the male respondents. Similarly, the likelihood of respondents having awareness of functional food was 1.431 times greater among those who had a higher educational level than among those with a lower educational level. Consumers who used vitamin supplements were 1.228 times more aware of functional food than other consumers. The results show that older respondents were 3.395 times more aware of functional food than younger respondents. Respondents with a history of familial diseases were more likely than others to have consumed margarine with plant sterol, fruit juices fortified with vitamin C, and breakfast cereals fortified with vitamins and minerals. Those with a diet‐related problem were more likely to have consumed cholesterol‐lowering products than those without a problem. As a conclusion, this study has shown that socio‐demographic characteristics such as age, education and income levels, and prices are important indicators that influence consumers' awareness and consumption of functional food. These results suggest that this type of knowledge could affect consumers' interest in functional foods, and therefore educational strategies might be necessary to encourage the consumption of functional foods.     

The income inequality,financial depth and economic growth nexus in China

Income inequality has increased in China despite rapid economic growth. Income inequality could impinge on future development, leading to social tension or political instability. Our study investigates the short-run and long-run relationship between three important macroeconomic indicators—income inequality, economic growth and financial depth. We utilise a two-step procedure of ARDL bounds and Granger causality for the analysis. The bounds test indicates the presence of a cointegrating relationship between income inequality, financial depth and economic growth in the long run. In the second step, we utilise the Granger causality approach. Results show a bidirectional causality between financial depth-growth and a unidirectional causality between inequality-growth in the short run. In the long run, results reveal that growth and financial depth determine Gini. Our findings provide support for the inequality-widening effect due to economic growth and higher credit provided to the private sector. We find no evidence of inequality-narrowing or income-equalising effect in the long run for the period of study. It is possible that the government's inclusive growth policies which started less than a decade ago have not taken effect for us to capture the inverted U-shape income equalising effect significantly.     

Firm size,profitability, and savings in Canada

This paper explores the relationship between firm size, profitability, and corporate savings behavior in Canada. It shows that the long-run propensities to save out of profits are much the same for firms of all sizes, although foreign-owned firms generally retain more of their profits compared to domestic firms. Profitability has also been found to be largely independent of variations in firm size, although large foreign-owned firms generally earn higher profits than large domestic firms. The study also finds no evidence for the superiority of the “dividend effect” over the “retained effect”. It is suggested that the relatively high debt ratio experienced by small domestic firms might be better explained by the demand than the supply side of the markets for new equity.     

Finns and functional foods: socio‐demographics,health efforts,notions of technology and the acceptability of health‐promoting foods

Eating is increasingly characterized by concerns over health and well‐being. New types of foods designed to promote health or to reduce the risk of diseases, known as functional foods, have been entering the market since the 1990s. This article focuses on the appropriation of functional foods among Finnish consumers from the perspective of acceptability. We analyse the relationship between consumers’ views of functional foods and their socio‐demographic backgrounds, health efforts and notions of food, health and technology. The article is based on a survey of a representative sample of Finnish consumers (n = 1210). The data were collected by using computer‐assisted telephone interviews and analysed by factor analysis and analysis of variance. The factor analysis resulted in four dimensions of acceptability: (1) experiences of functional foods; (2) views on product quality and safety; (3) societal concerns over current developments; and (4) views on regulation and research. According to the results, the differences in consumer views of functional foods were to some extent linked with age and education but better explained by the differing roles of food and health in people’s lives and the acceptability of modern food technologies. Efforts to lower blood cholesterol and/or blood pressure, the use of dietary supplements, regarding healthy eating as very important and having an optimistic outlook on the use of technology in food production were all related to more optimistic views of functional foods. Finns seem to have a relatively trusting position on functional foods. Familiarity of functional foods in Finland, absence of serious food scandals, the health‐oriented Finnish culture and the generally high level of societal trust may account for this optimism.     

A comparative study of water usage in metered and unmetered households

The purpose of this research was to investigate the water usage in metered and unmetered households. The work also examined consumer attitudes towards water usage, including the belief of the need to use water more efficiently and the motivation to do so. Data were obtained by a self-administered questionnaire from 89 households in the Trafford area of Greater Manchester in the winter of 1995/6. This has provided information on ownership levels and age of water-using domestic appliances and outdoor water-using equipment. Although the survey showed some consumer awareness of eco-labelling, actual knowledge was low in both metered and unmetered households. Those respondents who thought water metering did, or would, encourage greater water efficiency were generally aware of how savings could be achieved. Metered households showed a stronger belief in the benefits of water economy. Twenty households each monitored their water usage for 7 consecutive days. A second questionnaire, aimed at clarifying practices, was then completed. This has provided information on total domestic water usage and variations in the components of water demand. Although there was a wide range of values in both metered and unmetered households, the frequency of use of appliances and equipment and per capita consumption were found to be related to household size. This showed larger households benefiting from an economy of scale. Metered households in this survey had a mean water consumption of 124·19 L/person/day compared with 137·28 L/person/day in unmetered households.     

The role of food eating values and exploratory behaviour traits in predicting intention to consume organic foods: An extended planned behaviour approach

The extant literature on predicting organic food choice as a consumption behaviour has overlooked the role of food eating values (utilitarian and hedonic values) and individuals exploratory buying behavioural traits (exploratory information seeking and exploratory acquisition seeking). The novelty of the study is the use of food eating values and individuals exploratory buying behaviour traits as an extension to the theory of planned behaviour in predicting attitude and intentions towards organic food consumption with a representative sample of N = 431. Data was collected in two phases. In the first phase, a small qualitative face to face (semi structured) interviews were held from 22 respondents to elicit the utilitarian and hedonic values individuals attach with the organic food consumption. This is followed by the collection of survey data from two Indian metropolitan cities (New Delhi and Chennai) using a mall intercept method from the individuals visiting hypermarkets and supermarkets. The hypotheses were tested using structural equations modelling or SEM in IBM AMOS 24. Attitude to consume organic foods was found to be most dominant in predicting behavioural intention in both basic and the extended TPB model followed by subjective norms. Perceived behavioural control was found to be a significant predictor only in the extended TPB model, suggesting a dual role. Findings also suggested that utilitarian values are more influential than hedonic values in the formation of attitudes towards organic foods.Further, the exploratory information seeking traits are found to strengthen the relationship between a) perceived behavioural control and behavioural intention to consume organic foods and b) attitude to consume organic foods and behavioural intention to consume organic foods whereas exploratory acquisition seeking traits to be strengthening the relationship between attitude and behavioural intentions only. Implications for the policy makers is discussed towards the end of the study.     

Collaboration,motivation, and the size of organizations

We present an analytical model of an organization that offers operational drivers of limits on team size. The model trades off benefits from collaborative problem solving against the disadvantages of diminishing motivation when groups get large. Collaboration is represented as parallel employee activity combined with frequent sharing of partial information, with a resulting superlinear performance increase over team size. Motivation is modeled by team members periodically setting an effort level either to contribute to the best of their ability or to “cruise”; at the minimum level not recognizable as shirking. Each individual decision is limited by bounded rationality based on team rewards, the time horizon of team interaction, and individual expectations about colleagues’ behavior. The decision collapses to a simple “barrier rule”;. Work hard when a certain “barrier percentage”; of team members work hard, and otherwise shirk. The influence of team size on this barrier percentage depends on the extent of benefits from collaboration: As long as performance increases quadratically with team size, the increased benefits resulting from collaboration exactly balance the temptation to shirk, with the barrier percentage approaching a fixed limit for large team sizes. As soon as the performance increase slows to anything less than quadratic, shirking eventually sets in and limits the possible size of the team. This implies that cooperation is sustainable in large organizational units, provided the problem‐solving processes used are powerful enough to ensure sufficient performance increases. Thus, effective problem‐solving methods are of double value, improving direct productivity and mitigating the social dilemma from team production. A manager should enlarge his or her organization up to the minimum of the limit set by the cooperation barrier and the exogenous performance limit.     

微藻在能源、环保及食品保健中的应用

生物能源作为一种可再生的绿色能源,有望解决能源危机与环境污染等问题,以微藻为代表的第二代生物能源的出现引起了人们的极大关注,是解决能源危机的长远之计。对微藻在生物能源生产中的利用现状进行了总结,并介绍了其在CO2生物固碳、污水处理以及食品保健领域的应用价值。