1. Introduction
On the one hand, internationally sourcing food ingredients and products is beneficial because it may increase the availability and reduce the cost of food. On the other hand, the resulting agriculture food supply chains (FSCs) are typically long and complex [
1]. As a result, global FSCs may present risks to consumers, as they may negatively affect food safety [
1]. Thus, there is a need to examine how to sustainably access the benefits of globalization while managing these risks. Managing food safety issues has been researched extensively in the supply chain quality management (SCQM) literature (for recent reviews, see [
2,
3,
4]). This literature assumes that food safety issues arise largely due to unintentional quality issues. Nonetheless, ensuring food safety is central to sustainable and high-quality FSCs [
5]. However, there is a paucity of research that has examined how to manage the supply chain food safety issues that are due to quality issues that occur intentionally, otherwise known as food fraud.
Food fraud is “the act of defrauding buyers of food or ingredients for economic gain [
6] (p. 2).” It includes “the deliberate and intentional substitution, addition, tampering or misrepresentation of food, food ingredients or food packaging, labelling, product information or false or misleading statements made about a product [
7] (p. 3).” Growing attention from egregious cases of food fraud has encouraged government regulation and industry to take the initiative to begin to address this problem [
6]. For example, the Food Modernization Safety Act (FMSA) and Global Food Safety Initiative (GFSI) require firms to identify and mitigate food fraud risks [
7,
8]. Two interrelated issues contribute to a lack of practical guidance regarding how to address food fraud. First, compliance with FMSA and GFSI requirements has just taken effect in the last few years. Thus, best practices are still emerging and evolving. Second, an assessment of the causes of or vulnerability to food fraud incidents is still a fruitful area of research [
9,
10]. Therefore, there is an academic and a practical need to examine how to mitigate food fraud [
9].
In this paper, we investigate the food fraud management practices instituted by firms in Asia–Pacific honey FSCs. We focus on honey FSCs because these are, anecdotally, a place where food fraud, which is our phenomenon of interest, is pervasive. We believe food fraud is pervasive in honey FSCs because insiders think it is common place and refer to it as honey laundering [
11]. In addition,
Honeygate, the largest food fraud incident in the history of the United States, occurred in a network of honey FSCs [
11]. Lastly, honey is believed, by some estimates, to be among the top three foods that involve some form of fraud or adulteration in the world [
11]. We focus on Asia–Pacific honey FSCs because the other major demand market, the European Union (EU), has the world’s strictest inspection regime. They look for added sugar, antibiotics, and the pollen signatures of the honey [
12]. During our initial investigation of food fraud in honey, we discovered that, if the honey does not pass this strict inspection regime, then it is not allowed to be sold or used in food processing in the EU. Through our initial investigation, several industry experts that we spoke with indicated that any honey FSC fraud that may have been occurring in the EU may have shifted to other markets in the world to avoid detection, in order to preserve the profits of the honey launderers. Furthermore, managers have little incentive to take additional mitigation steps, because the EU commission coordinates and bears the majority of the cost for honey FSC inspections and actions [
12]. Since the Asia–Pacific region is the largest demand and supply honey market in the world, and the responsibility of detecting and eliminating, or failing to do so, honey food fraud is often borne by the FSC, we decided to examine the management practices there.
We map these specific practices to higher-order constructs, as identified by the Six Ts framework [
1], because of the equifinality or substitutability of specific practices. In other words, the SCQM outcome may be the same, but the path that leads to a specific outcome varies depending on a supply chain’s capabilities. For example, some suppliers may need relatively little training because they have developed capabilities through various quality certifications; thus, the focus may be on buyer–supplier integration the SCQM systems between firms. Alternatively, suppliers may require extensive supplier development (e.g., training) prior to effective SCQM integration. Conceptually, the Six Ts propose that Traceability, Transparency, Testability, Time, Trust, and Training practices may complement one another and improve food safety [
1]. While the Six Ts may be aspirational regarding what managers should do to regarding aspects of SCQM, including food fraud, our study examines managerial practices relative to food fraud.
Managers may choose to tolerate or accept risks because of implementation costs [
13]. Thus, we add the dimension of Tolerance to the existing Six Ts framework to create a new framework, the Seven Ts. Using our new framework, we argue that Tolerance, due to costs, may cause managers to treat the Seven Ts as substitutes rather than complements. Therefore, we hypothesize and test these competing perspectives. Our findings suggest that managers do tend to view this set of practices as substitutes or as unrelated considerations. Our study contributes to the extant literature by extending the Six Ts framework and empirically testing the Seven Ts.
The results of our study are particularly timely and practically relevant because the management of Asia–Pacific FSCs is becoming increasingly important. Currently, Asia has a food supply deficit, as it needs to import over 200 million tons of food a year [
14]. The countries in the Pacific region make up the majority of the exports that fill this current supply deficit [
14]. It is predicted that Asian demand for food will roughly double from its current level by 2030, driven by population growth and changing consumer preferences [
15]. At the same time, Asian food supply markets are expected to be more open to increased food price competition [
15]. Increased investment in infrastructure such as the One Belt, One Road initiative [
16], or trade liberalization [
17] may further increase trade across the Asia–Pacific region. With the future growth of Asian food demand and current supply constraints, the management of Asia–Pacific FSCs will become more important over time. Yet, with this increase in trade and economic opportunity, there may also be a corresponding increase in the incentive to commit food fraud. Thus, Asia–Pacific FSCs are an ideal environment for studying food fraud phenomena. At the same time, we argue that, by better managing food fraud, which can negatively affect supply, these FSCs may become more sustainable.
To the best of our knowledge, no SCQM study has addressed the challenges associated with the increasing opportunities or incentives for FSC fraud. This FSC food fraud would endanger food safety and could further exacerbate already tenuous Asia–Pacific relationships. For example, the 2009 tainted milk scandal, where at least 6 children died and 300,000 were made ill, was a Chinese domestic issue [
6]. It is not hard to imagine the potential ramifications of a similar international incident. Therefore, we believe our study practically contributes by examining how firms manage their FSCs in order to detect food fraud in a timely manner or prevent food fraud from harming consumers. More broadly, we believe our study adds to the nascent literature on how FSC mechanisms may contribute to creating sustainable food supply chains [
5,
18].
The remainder of this paper is organized as follows. In the next section, we review the relevant literature and generate a set of competing hypotheses. After that, we discuss our research design, methodology, sample frame, and data collection protocol. Next, we present the analysis of our data and report our results. We conclude our paper with a discussion of our results relative to the extant literature, as well as what our results mean for managers, academics, and policymakers.
2. Literature Review and Hypotheses
In this section, we discuss the Six Ts framework of supply chain quality management [
1]. We also develop logic for extending this framework by including a seventh dimension of Tolerance.
The Six T’s framework describes six complementary dimensions of SCQM. They are: (1) Traceability, which is “the ability to track a product’s flow or attributes throughout the production process and supply chain [
1] (p. 23).” (2) Transparency, which is the sharing of product information throughout the supply chain. (3) Testability, which is the ability to detect a non-conforming product. (4) Time, which is “the duration of specific processes [
1] (p. 23).” (5) Trust, which is the ability to rely on another supply chain party to honor their commitments. (6) Training, which is the “systematic process of developing knowledge, skills and attitudes regarding international standards of quality, food safety and best practices [
1] (p. 23).” Traceability and Transparency are robustness factors that enable quality in supply chains. They do so by allowing for root cause analyses of quality issues [
1]. Testability and Time are complicating factors that may impede the quality in supply chains if not managed. Difficulty in testing for quality issues or long lead times between when a quality issue occurs and when it is found may exacerbate the ability to find and correct the root causes of quality problems [
1]. Trust and Training are enabling factors that help to increase quality through the dissemination of quality process improvement knowledge throughout supply chains [
1].
Some food fraud research has addressed the components of the Six Ts framework. For example, Robson et al. (2021) conducted a review of food fraud mitigation guides [
19]. They found that Transparency and Testing are commonly suggested as the main sources of food fraud mitigation [
19]. While not explicitly mentioned in their work, one might argue that there are elements that implicate Trust or Traceability, as defined above, as being used for mitigation. Nonetheless, neither Time nor Trust were implicated.
Similarly, Brooks et al. (2021) conducted a review of food fraud in FSCs, with an emphasis on how COVID-19 and Brexit may have been affecting the incident rate of the fraud [
20]. They argued that existing challenges with Testability and Traceability were exacerbated by both COVID-19 and Brexit [
20]. They provided specific recommendations about how specific traceability systems and analytic techniques used to detect food fraud may be used to mitigate food fraud from occurring in FSCs [
20]. The other four components of the Six Ts framework were not mentioned.
Duan et al. (2020) conducted a content analysis of Blockchain (BC) technology adoption in FSCs [
21]. They argued and found that Transparency and Traceability have been indicated as reasons to adopt BC technology in FSCs [
21]. Additionally, they argued that an added benefit of adoption is that food safety will be enhanced and food fraud will be mitigated [
21]. However, they also indicated that the literature has identified some challenges to this adoption. While not explicitly mentioned in their work, one might argue that they indicated Training or Trust, as defined above, as being challenges to blockchains being adopted. Yet, their content analysis did not indicate Time or Testability as a either a benefit or challenge.
Danese and Mocellin (2021) examined five companies using BC technology to prevent counterfeiting [
22]. They provided guidance on how to build a downstream or upstream BC system to enhance Transparency and Traceability, in order to mitigate counterfeiting. While addressing how to design a BC system to mitigate the risk of counterfeiting is practically relevant [
22], counterfeiting is only one type of food fraud [
6,
9,
10]. It is worth mentioning that our study contributes to this literature by examining the other potential factors in mitigating food fraud, as identified by the Six Ts framework. However, it also contributes by examining all the management practices of all types of food fraud that were perceived by honey FSC managers to exist.
Zhang et al. (2023) used an evolutionary game theory model to examine how to mitigate honey adulteration in Chinese private and government FSCs [
23]. They found that the managers of companies have an incentive to not adulterate their honey-based products because they are able charge a price premium for their product [
23]. However, the non-adulterated honey producer’s ability to charge a premium depends on companies that adulterate their honey products being caught and penalized for such adulteration [
23]. Local governments have the responsibility of catching and penalizing any adulteration [
23]. As such, their study focused on Testability and Trust, but did not address the other dimensions of the Six Ts framework.
To the best of our knowledge, no empirical research has tested all the proposed dimensions of the Six Ts framework and how they may complement or substitute one another in order to mitigate food fraud. This is a gap in the extant literature. This gap is surprising, given the number of citations that the research has and that the motivating example for this research, which was the product recall of pet food products containing melamine, was food fraud. Our study hopes to contribute to the aforementioned food fraud and SCQM literature by filling this gap.
However, we believe this gap or the lack of research could be due to the Six Ts framework being incomplete. Specifically, it is missing the critical insight that mitigation practices may not always be implemented because of cost [
13]. Instead, managers may choose to accept or tolerate risks because they believe that the expense of the risk mitigation practices may exceed the profit made in any given transaction [
13]. Integrating this insight into the framework, which we henceforth refer to as Tolerance, creates a seventh T. However, this insight also suggests that managers may not view the original Six Ts as complements. This is because, in practice, when costs are considered, mitigating activities may be substitutes for Tolerance. Similarly, managers may make trade-offs among robustness factors, as well as complicating and enabling factors. Because the Six Ts framework [
1] argues that the aforementioned factors should be complements, while the Tolerance logic [
13] suggests that they may be substitutes, we propose competing hypotheses. In each pair of competing hypotheses, the first hypothesis suggests a complementary relationship between the robustness, complicating, and enabling factors, and the alternative hypothesis that suggests the factors are substitutes. Our hypotheses are:
H1a–d. The robustness factors of Traceability and Transparency will be positively related to the complicating factors of Testability and Time.
H1a. Traceability will be positively related to Testability.
H1b. Traceability will be positively related to Time.
H1c. Transparency will be positively related to Testability.
H1d. Transparency will be positively related to Time.
H1e–h. The robustness factors of Traceability and Transparency will be negatively related to the complicating factors of Testability and Time.
H1e. Traceability will be negatively related to Testability.
H1f. Traceability will be negatively related to Time.
H1g. Transparency will be negatively related to Testability.
H1h. Transparency will be negatively related to Time.
H2a–d. The robustness factors of Traceability and Transparency will be positively related to the enabling factors of Trust and Training.
H2a. Traceability will be positively related to Trust.
H2b. Traceability will be positively related to Training.
H2c. Transparency will be positively related to Trust.
H2d. Transparency will be positively related to Training.
H2e–h. The robustness factors of Traceability and Transparency will be negatively related to the enabling factors of Trust and Training
H2e. Traceability will be negatively related to Trust.
H2f. Traceability will be negatively related to Training.
H2g. Transparency will be negatively related to Trust.
H2h. Transparency will be negatively related to Training.
H3a,b. The complicating factors of Testability and Time will be positively related to the enabling factors of Trust and Training.
H3a. Testability will be positively related to Trust.
H3b. Testability will be positively related to Training.
H3c. Time will be positively related to Trust.
H3d. Time will be positively related to Training.
H3e–h. The complicating factors of Testability and Time will be negatively related to the enabling factors of Trust and Training.
H3e. Testability will be positively related to Trust.
H3f. Testability will be positively related to Training.
H3g. Time will be positively related to Trust.
H3h. Time will be positively related to Training.
We also include a second set of hypotheses that include Tolerance, the seventh T, and its relationship with the relationships between the robustness, complicating, and enabling factors. Using the same logic as above, we believe there may be either a complementary or a substitutionary relationship between these factors. Thus, we hypothesize:
H4a,b. Tolerance will be positively related to the robustness factors of Traceability and Transparency.
H4a. Tolerance will be positively related to Traceability.
H4b. Tolerance will be positively related to Transparency.
H4c,d. Tolerance will be negatively related to the robustness factors of Traceability and Transparency.
H4c. Tolerance will be negatively related to Traceability.
H4d. Tolerance will be negatively related to Transparency.
H5a,b. Tolerance will be positively related to the complicating factors of Testability and Time.
H5a. Tolerance will be positively related to Testability.
H5b. Tolerance will be positively related to Time.
H5c,d. Tolerance will be negatively related to the complicating factors of Testability and Time.
H5c. Tolerance will be negatively related to Testability.
H5d. Tolerance will be negatively related to Time.
H6a,b. Tolerance will be positively related to the enabling factors of Trust and Training.
H6a. Tolerance will be positively related to Trust.
H6b. Tolerance will be positively related to Training.
H6c,d. Tolerance will be negatively related to the enabling factors of Trust and Training.
H6c. Tolerance will be negatively related to Trust.
H6d. Tolerance will be negatively related to Training.
4. Results
We evaluated our hypotheses using Kendall’s Tau, because of the rank-ordered structure of the data and our sample size suggests caution regarding parametric assumptions. All the rank-ordered data were analyzed as originally indicated by the interviewees, except for the second-order theme of lack of trust, for which we reversed the code. Our results are reported in
Table 1.
The results showed that the robustness factors of Traceability and Transparency were negatively related to the complicating factors of Testability (τ = −0.26, p = 0.03; τ = −0.34, p < 0.01), but not statistically significantly related to Time (τ = 0.11, p = 0.78; τ = −0.14, p = 0.15). These findings support H1e and H1g, but fail to support H1a–d, H1f, or H1h. Additionally, we found that these robustness factors were not related to the complicating factor of Trust (τ = −0.15, p = 0.14; τ = 0.13, p = 0.18). Traceability was not statistically significantly related to Training (τ = −0.11, p = 0.21), but the results suggested a negative association of Transparency to Training (τ = −0.23, p = 0.04). These findings partially support H2h, but provide no support for H2a–g. Further, the results indicated that the complicating factors of Testability and Time were negatively related to the enabling factor of Trust (τ = −0.24, p = 0.04; τ = −0.25, p = 0.03). Training was negatively related to Testability (τ = −0.25, p = 0.03), but not statistically significantly related to Time (τ = −0.11, p = 0.22). These findings support H3e–g, but fail to provide support for H3a–d and H3h. In summary, our findings suggested that the robustness factors, complicating factors, and enabling factors of the Six Ts framework are used as substitutes in practice.
Our findings regarding Tolerance suggested a complex story. We found that Tolerance was positively related to the robustness factors of Traceability and Transparency (τ = 0.23, p = 0.05; τ = 0.25, p = 0.03). This supports H4a-b, but not the competing hypotheses of H4c-d. Conversely, we found that Tolerance was negatively related to the complicating factors of Testability and Time (τ = −0.28, p = 0.02; τ = −0.20, p = 0.07). This supports H4c,d, but not the competing hypotheses of H4a-b. Finally, we found that Tolerance was not significantly related to the enabling factor of Trust (τ = 0.16, p = 0.12), but was positively related to Training (τ = 0.24, p = 0.04). These findings support H6d, but fail to support H6a–c. Together, these findings suggest that Tolerance may be used in practice as a complement to Traceability, Transparency, and Training, and that Tolerance may be a substitute for Testability and Time.
6. Conclusions and Limitations
Our study makes several contributions to both academic knowledge and the practical management of FSCs. First, we illustrated how food fraud is managed by building on the extant SCQM literature that has focused on food safety [
1,
2,
3,
4]. As such, our study fills a gap in the literature by being among the first to empirically examine how an FSC might mitigate food fraud [
9]. Second, as our empirical results suggested, the tolerance of and trust in other supply chain entities appear to be the dominate manners of food fraud management. This is contrary to what is suggested by the extant Six Ts theoretical framework, but reflects current practice. We contribute by extending this framework to include Tolerance. Overall, and practically, these findings suggest that managers need to focus their efforts on how to encourage FSC participants to help prevent food fraud. These efforts may involve incentives or contracts, whose specific functional form we leave to future research. Finally, we provide a starting point for FSC managers who are seeking information about best practices and how to comply with recent FMSA and GFSI food fraud requirements.
Our study is subject to several limitations, which provides opportunities for future research. First, we limited our investigation to Asia–Pacific honey FSCs. While this focus may limit its generalizability, our study practically contributes by providing a starting point for the managers of other FSCs in the management of food fraud. This is important, because food fraud may be difficult to identify due to the difference between unintentional quality failures and deliberate food fraud [
6,
31]. For example, the Peanut Corporation of America’s (PCA) series of food product recalls in 2009 were initially attributed to a failure in the PCA’s quality management system (QMS) to detect the presence of salmonella during production. Upon further investigation, the PCA’s QMS was working, but the managers intentionally distributed the unsafe product in order to profit [
6]. In other cases, food fraud may mimic a desirable characteristic of food and the evidence of the adulteration is destroyed during the consumption process. For example, the pet food recalls in 2009 contained melamine, which mimics protein [
1].
Our second limitation is that we did not investigate the role of any aspect of social identity theory (i.e., culture, in-group/out-group dynamics, etc.) in the nature of food fraud vulnerability and, subsequently, preventative management practices. Despite our sample of twenty-seven firms across eight countries, we did not have a large enough sample to distinguish the best management practices considering the aspects of social identity theory. Nonetheless, it may be possible that any aspect of social identity theory could affect food fraud or its management.
Finally, we implicitly studied practices that managers perceived as effective against food fraud. While some research supports the reliability and validity of perceived measures of performance [
36], we have no definitive proof that such measures are objectively better. To measure the objective efficacy, we would need to observe the inputs and outcomes of food fraud practices at every stage in a particular FSC and across multiple different FSCs. Given the illicit nature of and intentional guile associated with food fraud, this would be difficult to accomplish. Future research may be able to expand upon this work to address some of these limitations.