Misuse of the ‘modified’ t statistic in regulatory telecommunications

Since the enactment of the Telecommunications Act of 1996 (1996), extensive expert testimony has justified use of the ‘modified’ t statistic (Brownie et al. Biometrics 46 (1990) 259–266) for performing two-sample hypothesis tests on Bell companies’ CLEC and ILEC performance measurement data. This paper demonstrates how key statistical claims made about the ‘modified’ t in this setting are false, leading not only to incorrect inferences as it currently is being used, but also to the possible undermining of the primary stated objective of the Act—the promotion of competition in the newly deregulated local telephone service markets. A simulation study provides strong evidence for the use of several other easily-implemented statistical procedures in this context; they should be useful in other settings as well.     

Food health claims – What consumers understand

Issues pertaining to consumer understanding of food health claims are complex and difficult to disentangle because there is a surprising lack of multidisciplinary research aimed at evaluating how consumers are influenced by factors impacting on the evaluation process. In the EU, current legislation is designed to protect consumers from misleading and false claims but there is much debate about the concept of the ‘average consumer’ referred to in the legislation.     

A mischievous attitude to African agriculture

The term ‘commercial agriculture’ has come to have two definitions: one for industrialized countries, and another for developing countries. Many academics and journalists imply that, for example, African agriculture is only ‘commercial agriculture’ when Africans are producing export crops such as coffee, cotton or tea for industrialized countries. Jossy Bibangambah disputes the logic and uses the case of Uganda to explain how food crops and cash crops compete when it comes to allocating resources.     

Environmental and health benefits of hunting lifestyles and diets for the Innu of Labrador

The Innu of northern Labrador, Canada have undergone profound transitions in recent decades with important implications for conservation, food and health policy. The change from permanent nomadic hunting, gathering and trapping in ‘the country’ (nutshimit) to sedentary village life (known as ‘sedentarisation’) has been associated with a marked decline in physical and mental health. The overarching response of the national government has been to emphasize village-based and institutional solutions. We show that changing the balance back to country-based activities would address both the primary causes of the crisis and improve the health and well-being of the Innu. Drawing on ethnographic fieldwork, interviews with Innu older people (Tshenut), empirical data on nutrition and activity, and comparative data from the experiences of other indigenous peoples, we identify pertinent biological and environmental transitions of significance to the current plight of the Innu. We show that nutrition and physical activity transitions have had major negative impacts on individual and community health. However, hunting and its associated social and cultural forms is still a viable option as part of a mixed livelihood and economy in the environmentally significant boreal forests and tundra of northern Labrador. Cultural continuity through Innu hunting activities is a means to decelerate, and possibly reverse, their decline. We suggest four new policy areas to help restore country-based activities: (i) a food policy for country food; (ii) an outpost programme; (iii) ecotourism; and (iv) an amended school calendar. Finally, we indicate the implications of our analysis for people in other countries.     

Impact of health-related claims on the perception of other product attributes

New EU legislation (EU Regulation 1924/2006) will allow a number of nutrition and health claims in food products. The objective of this research was to study how health claims affect consumers’ perception of other product attributes. A survey with a total of 4612 respondents from the Nordic countries explored consumers’ perceptions of attractiveness, healthiness, naturalness, tastiness and ability to reduce risk of disease by comparing ratings of products with and without health claims. Used claims varied in their benefit, active ingredient, claim structure and framing. The results showed that health claims had a moderate but mostly negative impact on the perception of other product attributes; the most significant impact was decrease in perceived naturalness. Consumers could also interpret the benefits in claims as intended. The wording of the claim had only small impact on the perception of the products, whereas earlier market presence of the ingredient had a large impact: differences among the Nordic countries reflected the previous exposure to health claims. The findings from this study suggest that consumers do not imply other health benefits from health claims and the health claim per se is not likely to cause any unrealistic positive inferences in perceived product quality.     

Front-label health claims: when less is more

Growing global attention has been directed toward labeling the ingredients, processing methods, and health claims of food. Accompanying this attention is an interest in how consumers process or understand the information on such labels. This article examines how the length of a front-label claim influences the nutritional beliefs and evaluation of a product when used in combination with complete back-label information. The results indicate that the presence of a shorter health claim on the front of the package (in combination with a more complete claim on the back) leads a person to generate more attribute-specific thoughts about the product and fewer general evaluative thoughts compared to longer health claims. These shorter health claims also led to more favorable beliefs about the product and to a more positive image of the product. This article concludes with a discussion of the implications of the findings for policy makers, consumers and researchers.     

The European Community's food aid programme : An integration of ideology, strategy, technology and surpluses

The European Community's food aid programme has come to be an unanticipated spillover from its Common Agricultural Policy (CAP). Policy-making within the institutions of the EEC consistently takes place in an environment of ideological differences, characterized by the ‘Europeans’ and the ‘nationalists’; the CAP is a front-line example. Its price-support features have enabled the Community's agriculture to be gradually and safely modernized. In turn, food surpluses, especially of dairy products, have become evident and costly. This mixture of ideology (including a strong dose of humanitarianism), strategy, technology and surpluses have played a major role in the development and construction of an EEC food aid policy, which has grown incrementally into a programme of significant proportions.     

Compatibility and competition in airlines demand side network effects

Network effects arising in air transport markets are usually viewed as resulting from the implications of joint production on the cost side. In this paper, we focus on network effects originating on the demand side. We consider a network that links three cities involving two direct and one indirect connection. Two carriers, with asymmetric traffic rights on this network compete sequentially: at the first stage, they choose their departure times; at the second, they set prices. We show that in order to compensate its network disadvantage the ‘weak’ carrier chooses its departure time as close as possible to its competitor's. This is in contrast to the usual maximum differentiation principle. The network effect intensifies price competition. Depending on the size of the market and on consumers valuation of waiting time, various subgame perfect equilibrium configurations are exhibited.     

Falling through the cracks: International accounting rate reform at the ITU and WTO

Heightened attention to international accounting rates at the ITU and the WTO has led some observers to conclude that carriers soon will impose cost-based termination charges. This article concludes that while accounting rates have declined on some routes, many incumbent carriers can and will delay or thwart progress. The article examines the FCC's unilateral regulatory initiative as evidence of a growing schism between governments keen on immediate progress and those that fear a ‘free fall’ in accounting rates and a quick end to settlement surpluses. The article also considers technological innovations like call-back and Internet telephony with an eye toward assesssing whether and how widespread accounting rate reductions will occur.     

Magic bullets and the nutrition agenda

This article is a rejoinder to Berg and Austin's paper. The authors have no quarrel with Berg and Austin's conclusion that ‘progress’ has been unspectacular and patchy, or that there is much worthwhile work to be done. However, the authors argue that what Berg and Austin have described is not a ‘new paradigm’, but more of the same — more magic bullets.     

An Exploration of the Role Values Plays in Design Decision-Making

The paper explores the role of values in design decision-making through the eyes of key authors and a pilot study. ‘Knowing that’ and ‘knowing how’ in designing are reviewed and the problematic distinctions between ‘know how’; and skill noted. The effect of values on design decision-making is discussed and examples from the pilot study are presented together with a new categorisation strategy for values in design decision-making.     

European consumer preferences for beef with nutrition and health claims: A multi-country investigation using discrete choice experiments

The European Union (EU) nutrition labelling policy aims to facilitate consumers’ food choice, stimulate innovation and facilitate the circulation of foods bearing claims across countries. However, the beef industry has not fully taken advantage of utilizing nutrition and health claims based on the EU nutrition labelling policy to differentiate beef products in the market. This study investigates consumer preferences for nutrition and health claims on lean beef steak. Two choice experiments were conducted among 2400 beef consumers in four EU countries (Belgium, France, the Netherlands, United and United Kingdom). Multinomial logit and error component models were estimated. Our results generally suggest that consumer valuation of nutritional and health claims varies across countries. In Belgium, the Netherlands and France, nutrition and health claims on saturated fat yielded higher utilities than claims on protein and/or iron, while the opposite was found among consumers in the UK. The results imply that marketing opportunities related to nutrition and health claims on beef are promising, but that different nutritional marketing strategies are necessary within different countries.     

Is rationing socialist?: Cuba's food distribution system

Cuba, an economically underdeveloped country, has achieved a goal that even most developed countries find elusive: it has eliminated hunger. A 1982 report prepared for the Joint Economic Committee of the US Congress acknowledged that Cuba has ‘eliminated almost all malnutrition, particularly among small children.’¹ This article looks at how Cuba has managed to feed its people. It also questions whether the system created 25 years ago to ensure just distribution, ie rationing, today stands as an obstacle to the further development of Cuba's food system.     

The evolution of language complexity in qualified health claims

In the US, the Food and Drug Administration (FDA) has oversight for qualified health claims (QHCs). These claims emerged as the result of a legal dispute about commercial speech rights on dietary supplements and food products. The initial court ruling allowed manufacturers to include diet–disease information on packaging, when supporting evidence does not meet the traditional threshold of Significant Scientific Agreement. QHCs communicate about a potential health benefit of the consumption of a food or supplement, and due to their nature, are required to specify the balance of evidence behind the diet–disease relationships. As a result, the language contained in QHCs is complex, making them difficult for consumers to understand. The language has been further complicated by a continuing series of court challenges about how scientific evidence is described in QHCs. To understand the evolution of QHC language, we review the progression of court rulings surrounding qualified health claims and subsequent regulations by the FDA. This analysis provides a case study of the challenging task of effective science communication within a dynamic food litigation and policy environment.     

Fish protein concentrate: Lessons for future food supplementation

Fish protein concentrate (FPC) was widely publicized during the late 1960s as the most promising of a number of ‘technological fixes’, to eliminate worldwide malnutrition. On the basis of their deep involvement in a study on the fate of FPC projects in over 40 countries, the authors speculate in this paper what lessons should be learned from the FPC experience for future food supplementation endeavours.     

Disaggregating food consumption parameters : Designing targeted nutritional interventions

This article is concerned with a new nutritional intervention strategy, which is based on the belief that malnourished people eat different types of food to the well-nourished. The calculation of disaggregated food consumption parameters can identify ‘inferior’ food commodities; and the subsidization of these commodities will target intervention to those most in need. The effectiveness of this policy depends on the understanding of its theoretical basis. The author introduces the policy maker to this by reviewing the theoretical basis for consumption analysis, and then several key studies.     

Health claims and consumers’ behavioral intentions: The case of soy-based food

This research evaluates the impact of two soy-specific health claims (highlighting FDA approval along with scientific results and simply describing scientific results) on stated behavioral intentions toward soy-based food using a survey administered by Ipsos-Observer to a nationally representative web panel in the summer of 2007. Our research design randomly assigned respondents to a health claim. Three ordered probit models (non-soy users; infrequent soy users; regular soy users) show that non-soy users and infrequent soy users who were exposed to either FDA health claim or general health claim are significantly more likely to eat soy-based food products. FDA or general health claim, however, did not change the behavioral intentions of regular soy users. These results suggest that soy consumption status moderates the impacts of health claims on behavioral intentions. However, the impact of FDA health claim did not differ from that of general health claim, indicating that the word ‘FDA’ did not add any additional information to consumers beyond the general health claim.     

The sceptical consumer? Exploring views about food assurance

The problem of trust in food production and regulation has increasingly been raised as a practical and policy issue in recent years and one solution has been to provide more and better information about food production and regulation, especially through food assurance schemes. To look for evidence that this might be successful, this paper uses a small empirical study of how UK consumers think about food information and food assurance claims, using a statement sorting exercise (Q methodology) to identify key factors or shared views. We found that our consumers, despite differences in sociodemographics, gender, diet and shopping habits, tended to share a baseline of scepticism about food information and food assurance claims. We speculate that such scepticism may mean that, rather than providing a solution to the problem of distrust, food assurance schemes may themselves come to be distrusted.     

Food insecurity in developing countries

Despite improvements in the world food predicament, the underlying causes of food crises have not disappeared. The aim of this article is to improve understanding of food security problems in Asia, Africa and Latin America, and to assess the relative merits of alternative national and international intervention schemes. The article includes discussion of the concept of ‘food security’, policies that can be undertaken at the national level, a quantitative assessment of national food insecurity for a sample of LDCs, and an examination of the proposed international policies to enhance food security in food-deficit countries.     

Eating to save the planet: Evidence from a randomized controlled trial using individual-level food purchase data

Meat consumption is a major driver of climate change. Interventions that reduce meat consumption may improve public health and promote environmental sustainability. We conducted a randomized controlled trial to examine the effects of an awareness-raising intervention on meat consumption. We randomized undergraduate classes into treatment and control groups. Treatment groups received a 50-minute lecture on how food choices affect climate change, along with information about the health benefits of reduced meat consumption. Control classrooms received a lecture on a placebo topic. We analyzed 49,301 students’ meal purchases in the college dining halls before and after the intervention. We merged food purchase data with survey data to study heterogenous treatment effects and disentangle mechanisms. Participants in the treatment group reduced their purchases of meat and increased their purchases of plant-based alternatives after the intervention. The probability of purchasing a meat-based meal fell by 4.6 percentage points (p < 0.01), whereas the probability of purchasing a plant-based meal increased by 4.2 percentage points (p = 0.04). While the effects were stronger during the semester of the intervention, dietary shifts persisted and remained statistically significant through the full academic year. Our study provides evidence that an intervention based on informing consumers and encouraging voluntary shifts can effectively reduce the demand for meat. Our findings help to inform the international food policy debate on how to counter rising global levels of meat consumption to achieve climate change goals. To our knowledge, our study is the first to assess the effectiveness of an educational intervention to reduce meat consumption using such high-quality data (i.e. individual-level food purchases) over a prolonged period.