Consumers of food service businesses have been through and will continue to undergo tremendous changes due to COVID-19. First, due to lockdown or heavy restrictions on in-dining food services during the pandemic, consumers have been unable to enjoy in-dining experiences, either in a complete or at least a partial manner [3132]. Even in the absence of government restrictions on the in-dining food service, many consumers were and are reluctant to dine out in a confined food service setting, because of the possibility of COVID-19 transmission [33]. Moreover, although the vaccination rate is significantly increasing, some consumers either refuse inoculation, thus avoiding dining out, or do not feel safe to dine out in a confined place even after getting vaccinated [3435]. This lingering concern is understandable because of the high level of uncertainty regarding COVID-19 and its vaccines, especially among the general public [36]. Accordingly, it is important to understand the real consumer confidence in dining in food service establishments as the COVID-19 development continues and how such confidence can be boosted from the perspective of food service management.

Therefore, food service researchers should pay close attention to the status of consumers' confidence in dining at food service establishments. An important aspect of this examination would be a constant or timely update because since everyone is experiencing this type of pandemic for the first time, how people psychologically recover from and respond to this event is unknown. In particular, as vaccination rate accelerates globally, consumer confidence may recover quickly in a non-linear fashion, or it may first recover quickly but later possibly stall at a certain level due to a particular group of consumers who are either too concerned about the possibility of full recovery or skeptical of vaccination programs, which raise legitimate empirical questions for the food service industry.

Next, the food service business should have a better understanding of how they can improve consumer confidence in in-dining food services. There are various ways that can be implemented to boost consumer confidence in this matter, such as cleaning and sanitizing, restructuring the dining table layout to ensure social distancing, requiring employees and customers to wear face masks, installing transparent plastic panels at the counter and/or between tables, and minimizing human interactions (e.g., use of an electronic tablet for menu ordering or even robots to take orders). Restaurant businesses need to understand which practices to prioritize or emphasize because they do not have unlimited resources to implement them all. An efficient allocation of resources is essential for the food service industry to achieve a more desirable level of profitability because they have a tight profit margin. Furthermore, even when all or most of the possible implementations are feasible and can be done, proper prioritization of these implementations can go a long way to enhance consumer confidence in in-dining services more effectively, which can directly or indirectly impact the establishment's or brand's image, and consumer loyalty and revisit intention eventually.

Accordingly, researchers in the food service literature are recommended to explore, first, the practices that restaurant businesses should consider implementing to improve consumer confidence in in-dining services. In addition, it would be interesting to investigate differing degrees of consumers' perceptions of the importance of such practices to assist the food service business to prioritize relevant practices more efficiently and effectively, especially in terms of resource allocation. It would also be critical to study how to disseminate the information of those practices to the target markets (i.e., a marketing strategy). Some potential questions to answer in this matter may include which marketing media should be used, which practices or messages should be emphasized, and how these messages should be delivered (e.g., with more detailed information in an educational format or with more visual representations of actual practices). To accomplish these research goals, researchers should seek responses from consumers as primary data by utilizing a survey method in an observational or experimental manner. Laboratory experiments and follow-up field studies are desirable. In addition to examining the main effects of the aforementioned factors, researchers would be encouraged to test potential moderating factors such as gender, age, perceptions of COVID-19, having children, pre-existing health conditions, tendency to general risks, and so on in relation to some characteristics of consumers, but also food service types (e.g., fast food, full-service, etc.), franchised vs. independent, size of the food service establishment, managerial abilities, location of the business, and so on in relation to the business characteristics. Understanding these contingent boundaries will help untangle the proposed main relationships among the mentioned factors in a more detailed and comprehensive way.

Another interesting topic is the contact-free service, which can be represented by the marketing term “untact service” in the recent literature (from 2017 to be precise) [37]. The untact service for the food service business includes drive-through, curbside pickup, and delivery. All these forms of untact services have become a norm in the food service industry during the current pandemic and they have helped many businesses in the industry survive the global health and economic crisis [3839]. It would be important to reveal, first, how untact services have been helped the industry, for example, its impact on sales and profits, and second, how such positive impacts have been heterogeneous contingent on various factors from both consumer (e.g., gender and age) and business perspectives (e.g., location and type of food service).

Lastly, food service researchers should pay attention to which mentioned factors would stick around even after the pandemic is over. Many believe that these new norms during the pandemic, such as the popularity of untact services, fewer interactions with service providers (e.g., service by robotics), and some cleaning and sanitization practices will continue even after the pandemic. However, it is clearly an empirical question that needs to be examined and verified with actual data and rigorous analyses. Even when consumers may anticipate that these practices will still be important and influence their decisions even after the pandemic, their perceptions can certainly change once the pandemic is over. Although we strongly believe that some of these practices will still be important even after the pandemic, which practices will be significant remains to be answered empirically. Understanding the matter will help the food service business to develop more appropriate and timely strategies.

Similar to consumers of the food service business, employees of the food service business have been experiencing tremendous changes and hardships. For example, the current pandemic has revealed a high level of risk embedded in the food service industry regarding job security from an employee's perspective. Due to the lockdowns and rigid restrictions on food service operations due to COVID-19, countless food service employees have been laid off or furloughed or have experienced a reduced number of working hours. In fact, the food service industry has been one of the hardest hits in the economy by the pandemic [33]. Since the food service industry is known for a high turnover rate of employees, the added hardship on employees in the industry has been devastating for both employees and employers. Some employees are considering switching to a new career in a different industry because of this hardship, which requires the business to decide what it needs to do to retain and recruit talented employees during and after the pandemic. This is a critical issue even for those employees who stay with their company because they have witnessed a high level of risk and uncertainty in the food service business, which is volatile to external forces such as the pandemic. The industry needs to convince its employees that the industry is still viable and has great potential to grow in the future, especially after the crisis.

Understanding the factors during the pandemic that significantly influence employees' various perceptions, such as satisfaction, commitment, and loyalty, is critical for food service management. Employee perceptions play an important role in shaping employees' intention to remain with the company at the end [4041]. Despite the extreme operational hardships faced by food service employers during the pandemic, they still need to ensure that they show their employees that they care for them and are trying their best to provide them with job security during the pandemic. Such practices can go a long way, possibly making significantly positive impacts on employees' satisfaction with and commitment to their organization because employees also understand how challenging those practices can be during the current pandemic. This kind of positive impact may eventually have an aftereffect on organizational culture and its long-term success. Accordingly, it is suggested that researchers may explore how employers' caring and transparency in their communication influence employees' perceptions and behaviors during the pandemic.

Another important issue that needs to be considered regarding employees in the food service business during the pandemic is human resource allocation. As discussed earlier, the food service business had to adapt to a new business environment during the pandemic by extensively implementing untact services, such as drive-through, curbside pickup, and delivery. In doing so, many food service businesses had to deviate from their traditional in-dining services. Such a dramatic transition requires reallocation of human resources to different tasks and related new training. It would be interesting to research how this reallocation impacted the food service business and, in particular, employees' various perceptions about their job and productivity. Additionally, an extension of this research to the post-pandemic period should be encouraged because such investigations may reveal possible lasting benefits (e.g., improved human capital with multiple capabilities) and/or drawbacks (e.g., dissatisfied employees with too many or less focused job responsibilities) in a long-term manner.

In addition to the customer and employee perspectives, there are potential research topics from an organizational strategy perspective that need attention. Food service businesses can implement or might have implemented certain organizational strategies to cope with the pandemic. Accordingly, it is important for researchers to investigate which business strategies (e.g., corporate social responsibility [CSR], franchising, internationalization, and diversification) generate positive benefits during the pandemic. For example, previous studies found that a firm's engagement in CSR activities can enhance employees' commitment to and satisfaction with their organization, improve their productivity, and reduce turnover intention [4243]. Furthermore, many previous studies have found that CSR positively impacts consumers [44] and firm performance [45]. Hence, it can be interesting to see whether the food service business's CSR investment during the pandemic has the same positive impact (e.g., on customers, employees, and/or business performance). Interestingly, some may argue that an investment in CSR activities during the pandemic has an opposite impact (i.e., a negative impact) on employees, customers, and performance because such investments will cause the cash flow of the business to become even tighter in an extremely difficult time, thus making the probability of its survival slimmer.

It would also be interesting to explore whether a company's pre-existing reputation of being socially responsible can generate business benefits during the pandemic. The pre-existing reputation is not about the company's investment in CSR during the pandemic, but rather the reputation that had already been built before the pandemic, which does not put any burden on the company during the pandemic. In such a case, the pre-existing reputation of CSR may be more likely to provide benefits because it does not cost the company anything during the pandemic, and CSR investment has been found to provide insurance-like protection during a crisis [46]. All these CSR issues can be viewed as part of or equivalent to environmental, social, and governance (ESG) issues, which have gained considerable attention from the corporate world and public. Although the ESG concept was created and has been used more in the investment context, due to its extensive popularity in the contemporary corporate world, the term is now used more interchangeably with a broader concept, such as CSR. Accordingly, the suggested research topics are timely, even in the context of ESG. However, since all these suggested research issues are empirical questions, they require empirical verification.

Furthermore, similar research studies apply to other business strategies, such as franchising, internationalization, and various diversification strategies. In particular, since the food service industry employs the franchising strategy the most in the U.S. economy [47], significant implications of implementing the strategy may exist in relation to the pandemic. Researchers are encouraged to find such implications.

The organizational strategies mentioned above are mainly at the firm level and not at the individual unit level. A majority of the food service business consists of independent and small businesses. Hence, inspecting the effects of the characteristics of the food service business at an individual unit level during the pandemic can provide meaningful and practical implications for food service business owners and operators. An example of such characteristics can be the type of financing. In contrast with large corporations, small food service businesses rely heavily on personal connections to finance (e.g., raising capital from family members and friends) in addition to formal financing (i.e., loans from financial institutions). These different types of financing may imply certain capabilities or lack of them in owners and consequently suggest some anticipatory outcomes during the pandemic, such as a high likelihood of suffering from poor performance and business failure. Thus, these issues should be researched to gain a better understanding of the food service business during the COVID-19 pandemic.