预包装食品标签常见问题分析及建议

预包装食品标签作为展示产品质量重要内容之一,主要展示了食品生产者、质量指标、营养指标等信息,是消费者选购食品的主要参考依据。本文依据常用的国家标准及相关法律法规,对预包装食品标签常见问题及原因进行分析,并提出建议,为食品生产企业规范食品标签提供参考,也为食品安全监管部门日常监管提供一定的技术支持。     

The Effects of Multiple Health and Nutrition Labels on Consumer Food Choices

Consumers face an increasing availability of information on health and nutritional aspects of foods, especially on food package labels. Previous research has identified that this information is positively valued, but the effect of presenting several items of information simultaneously is not well understood. We conduct a choice experiment to identify the effects of multiple health and nutrition information labels for two products representing a healthy and less healthy food choice. Although our consumers attach positive utility to most of the individual labels evaluated here, the simultaneous presence of more than one label only has positive impact on utility in one of nine possible cases. Therefore, promotion of multiple labels should not be considered beneficial a priori either from a regulatory or business perspective. In addition, results show that consumers show a higher willingness to pay for nutrition and health labels for less healthy products.     

What If You Stop and Think About It? Nutrition Logos and Product Selection Behavior

This study explores the effect of a health involvement manipulation on food choices and how food choices are influenced by front-of-pack nutrition labels. The results show that without health involvement, choice was significantly affected by both nutrition labels and product type, but the product choice with health involvement was affected only by whether the product was selected as the healthier one in the involvement manipulation stage. Moreover, selection of the healthiest product during the manipulation stage was affected by the product type but not the front-of-pack (FOP) labels, potentially because participants relied on their own knowledge or the product perception to assess the healthiness of the product rather than the label information. The implication is that consumers seem to behave differently when pushed into a “choose healthy” state of mind, and their reliance on label information to assess product healthiness may be product and context dependent.     

Food Beliefs: Elicitation,Estimation and Implications for Labeling Policy

We present a model in which consumers use product attributes (or labels) and their own beliefs to form expectations about the quality of a product. We use best–worst scaling to elicit beliefs, and study how information may influence these beliefs. In our ranking experiments, participants sort different milk products according to (perceived) nutritional or environmental quality, and we use the resulting choice data to recover beliefs econometrically. In a nutritional quality experiment, we measure how food labels (i.e. front‐of‐package, back‐of‐package and ratio of recommended to restricted nutrients) alter consumers’ beliefs, finding that truthful attribute information may sometimes mislead consumers. The discussion explains how similar experiments could be used to distinguish informative labels from marketing messages.     

Covid-19-tested food labels

While the transmission of virus SARS-CoV-2 via food is rare, some Chinese food retailers are considering a Covid-19-tested food label. However, how consumers may support such a label is unknown. We quantify Chinese consumers’ willingness to pay (WTP) for food carrying a Covid-19-tested label using an online choice experiment. We find that the WTPs for such a label are always positive for all food products considered. The amount of WTP depends on the entities authenticating the labels, country of origin of the food, and consumers’ socio-demographic status. Contrary to expectation, the knowledge on Covid-19 does not affect consumer preferences for the Covid-19-tested food labels. Our benefit and cost analysis suggests a possible large benefit of creating and administering a Covid-19-tested food label. This study provides insights for policymakers, global food manufacturers, and retailers to create marketing strategies to alleviate consumer food safety concerns associated with Covid-19.     

Do Nutrition Claims Matter to Consumers? An Empirical Analysis Considering European Requirements

EU Regulation 1924/2006 introduced a European legal framework for nutrition messages for food product labels. The study analyses consumer interest towards nutrition labelling and claims, and examines the information consumers consider important during their purchasing decisions, and the main characteristics of those consumers interested in nutrition claims and nutrition labelling use. A total of 1,025 northern Italian consumers were surveyed. We estimate one binary logit model to investigate the use of nutrition labelling, and seven other ordinal regression models to analyse consumer interest towards nutrition claims and labelling. Consumers who use nutrition labelling have characteristics different from those who use nutrition claims. Consumers using nutrition labelling show a marked interest in food safety concerns, use experts as their source of information and have specific dietary habits. For consumers concerned about nutrition claims, the survey shows significant links with attributes influencing purchasing behaviour, such as price, brand, certification, etc. Socio‐demographic characteristics are statistically significant and show a positive link with age, gender and a negative linkage with income.     

解读《预包装食品营养标签通则》

《预包装食品营养标签通则》的实施,指导和规范了营养标签的标示,消费者通过营养标签获取正确的营养信息,合理选择食品。同时,该通则的实施,有利于保护消费者的身体健康、促进食品行业的良性发展。     

Information,Certification and Demand for Food Safety: Evidence from an In‐store Experiment in Mumbai

Is demand for safe food in developing countries low because of limited ability to pay, or because of lack of consumer awareness and absence of credible certification? To answer this question we conducted a controlled market experiment in Mumbai, India, selling grapes with credible certification labels alongside unlabeled grapes while providing randomly selected consumers with information on salient features of food safety certification. We confirm that informed consumers are more likely to purchase labeled grapes, controlling for prior information and attitudes, and using two (intensive versus extensive) information treatments. Policies related to information/certification could be an important component of improving public health by mobilising latent demand for food safety and hence supply of safer food for the public.     

Perception versus Reality: Canadian Consumer Views of Local and Organic

During the past decade, Canadian consumers have developed a keen interest in local and organic foods. In response, the Canadian government established standards to regulate their labeling. However, many retail and media outlets offer varying definitions that fit their needs. Consumers utilize this often conflicting information to formulate their understanding of local and organic. The aim of this study was to investigate consumer understanding and perception of local and organic food, especially in regard to production characteristics. The results indicate that local is predominantly defined as decreased miles to transport, whereas organic is defined as food produced without the use of synthetic pesticides. However, a fairly large percentage of consumers perceive inaccurate definitions as being characteristics of local and organic. Furthermore, consumers with accurate definitions of local and organic share a similar consumer profile, while consumers with misguided perceptions do not. We also see that characteristics such as ethnic heritage, personal characteristics, geographic region, and length of stay in Canada not only influence consumer understanding and perception, but also the geographic boundaries associated with local.     

Consumer Behavior, Public Policy, and Country-of-Origin Labeling

Recent work by agricultural economists has failed to adequately identify why consumers desire country-of-origin labeling, a key piece of information needed to determine whether a market-failure exists. This paper brings to the attention of agricultural economists a sizable body of literature on country-of-origin effects from the marketing and business disciplines. Based on this literature, we draw a distinction between several consumer motivations for origin labels and we identify which of these is cause for public policy. We propose several research questions that require answers if the consequences of country-of-origin labeling policy are to be fully understood.     

消费者需掌握的食品标签知识

消费者的食品安全常识与日俱增,具备在选购食品时要关注生产日期、保质期、外观等基础知识,但一些较有用的标签信息还不为消费者掌握和运用。通过对食品标签上的信息的分析,让消费者掌握更多食品知识,提高对预包装食品标签的辨析能力,同时选购到更适合的食品。     

获取披露信息能提高食品信任水平吗——基于湖南省长沙市生鲜品信息公示的调查数据

缩小主体间信息差距是提高食品市场信任水平的重要途径。为了研究食品安全信息披露环境中,消费者获取信息对食品信任的影响,本文通过问卷调查长沙市1050位消费者,搜集消费行为和个人特征的数据,并使用内生处理效应模型和倾向得分匹配方法进行实证分析,结果发现:虽然样本中只有17%的消费者主动搜寻公示信息,但是获取披露信息能够缓解不对称程度并提高满意度,进而显著正向影响信任程度;同时,获取披露信息在女性组中有显著正向影响,而在年龄组间的影响为倒U型;另外,信息获取行为的选择受到食品安全、干净卫生和对新鲜程度关注度的显著影响。结果说明,在信息披露后,帮助和引导消费者主动获取信息,能够更好地提升食品市场的信任水平。     

Food Safety and Adverse Selection in Rural Maize Markets

Without enforced standards or reliable third-party verification, food safety threats such as pesticide residues and aflatoxin contamination are generally unobservable or only partially observable to both buyers and sellers, especially of staple foods in rural maize markets in sub-Saharan Africa. As a result, sellers have more information about food quality than do buyers. Such information asymmetries can impede market development and undermine human health. We study farm household behaviour in the context of imperfect food safety information. We pool observations obtained from 707 food storage containers maintained by 309 farm households in Benin, surveyed following the maize harvests of 2011/2012 and 2013/2014. Our results indicate that when a household perceives a food safety risk associated with application of insecticides, on average it is 33 percentage points less likely to apply insecticides to maize it intends to consume than it is to maize it intends to sell. These individuals are also more likely to sell maize than households without food safety concerns. Results highlight the potential value of improved storage technologies and quality control to promote market transactions and reduce hidden health risks.     

Measuring the relative importance of preferences for country of origin in China, France, Niger, and the United States

Recent labeling policies in developed countries place new focus on origin labeling, especially country of origin labeling, for a variety of food products. It is not clear if this new emphasis on origin is the result of more ethnocentric consumer preferences for food. We measure consumer preferences for country of origin in four different international locations and one domestic control location using a conjoint experiment to test the null hypotheses that consumers do not have stronger own-country preferences. In addition, we compare the relative importance of consumer preferences for origin to their preferences for genetically modified food and pesticide-free production using attribute coefficients from within location ordered probit models. The study was conducted in China, France, Niger, and the United States. We find consumers tend to prefer food from their own location indicating ethnocentric tendencies do play a role in shaping country-of-origin preferences. Country of origin is generally less important to consumers than genetically modified food content and pesticide use in food production.     

Factors Impacting Food Safety Risk Perceptions

We developed and applied a model of consumer risk perceptions of beef food safety to better understand the underlying drivers of consumer demand for food safety. We show how consumer demographics, country‐of‐residence, as well as reliance on, and trust in, alternative food safety information sources affect risk perceptions of consumers in Canada, Japan and the United States. Consumers in all three countries have risk perceptions shaped by their level of reliance on observable and credence attribute information. Risk perceptions of consumers in each country are significantly higher for those less trusting of doctors. Moreover, personal and indirect food safety experiences substantially affect risk perceptions. These results are useful to decision‐makers in developing more efficient supply chain management strategies and public policies aimed at building or sustaining consumer confidence in food safety.     

Labelling Genetically Modified Food: Heterogeneous Consumer Preferences and the Value of Information

One facet of public debate associated with genetically modified (GM) food focuses on labelling policy for products derived from GM processes. This paper reports on the analysis of effects on consumers' choices of pre-packaged sliced bread under different GM food labelling policies. Substantial heterogeneity is found to exist among consumers' tastes for various bread attributes, including the presence/absence of GM ingredients in bread products. A simulation-based bias-adjusted measure is applied to estimate the value of information, as opposed to the value of the presence or absence of GM ingredients, revealed to consumers by different labelling procedures for the GM attribute. The information that is provided in a mandatory labelling context is considerably more valued by consumers than the information provided in a voluntary labelling context. In a final section, estimated consumer benefits from labelling policies are expressed in terms of average market prices for bread products, providing a measure of benefits against which potential cost increases that may be associated with labelling policies may be compared in the context of any future benefit–cost analysis of GM labelling.     

International honey laundering and consumer willingness to pay a premium for local honey: an experimental study

Fraudulent activities in the international honey market affect 10% of food, and cost the global food market $50 billion per annum. Although many developed countries have created regulations to combat food fraud, illegally imported honey, especially originating from China, still enters through transshipments and relabelling to mask its true origin. This honey laundering poses a health risk to consumers, as Chinese honey potentially contains illegal and unsafe antibiotics and high levels of herbicides and pesticides. We analyse whether information about the negative health impacts of laundered honey increases the proportion of consumers willing to pay a premium for local fraud‐free honey. Using a laboratory experiment, we find when consumers are given honey laundering information, their willingness to pay a premium for local fraud‐free honey increases by as much as 27 percentage points. Our findings suggest that by conveying honey laundering information and guaranteeing their honey is fraud‐free, producers can potentially increase revenues and reduce the prevalence of food fraud. Our results further show that consumers' preference for various honey characteristics and age also influence the probability of paying a premium for local honey.     

On Food Companies Liability for Obesity

The U.S. food industry faces tobacco-style lawsuits for providing misleading information about health risks linked to the consumption of fatty products. This article investigates the link between alternative liability rules and the incentive for disclosing health information to consumers. We show that if the expected damage is relatively low, the absence of intervention is socially optimal. If the expected damage is not too high, mandatory labeling is socially optimal. Liability rules are only welfare-enhancing for high levels of risk and/or when consumers misperceive health warnings.     

Does Production Labeling Stigmatize Conventional Milk?

Production labeling is a common approach for differentiating otherwise similar products in the marketplace. While these labels may convey positive messages to consumers about the new product, they may simultaneously stigmatize the conventionally produced product by highlighting perceived problems. The net economic result for producers can be negative since consumers may decrease their willingness to pay for the conventional product that dominates the market, while the new product has a relatively small market share. This experimental research identifies this stigma effect in the case of milk, where the introduction of rBST-free and organic milk reduces consumers' willingness to purchase conventional milk.