# Experimental Study on the Risk Preference Characteristics of Members in Supply Chain Emergencies
## 1 Introduction  
A supply chain refers to the network structure formed by upstream and downstream enterprises involved in providing products or services for end users during the production and circulation process. Since a variety of unconventional incidents have occurred more frequently than usual in recent years, the supply and demand markets of goods and services under globalization fluctuate more violently. In addition, the commercial competition environment of the supply chain and the complexity of the internal network structure of the supply chain are constantly increasing with the prevalence of business concepts and production methods, such as centralized production and distribution, lean production, just-in-time production, and noncore business outsourcing. The current supply chain is constantly improving efficiently, but it is also becoming fragile and is easily disrupted by increasing risk challenges [1, 2]. As a result, supply chain emergency management has attracted great attention from academia and industry, which has become a rapidly developing and important research field, with an indispensable component of supply chain risk management being considered. Meanwhile, the external environment of the supply chain is more volatile, the risk structure is more complex, and the management difficulty in responding to emergencies is also greater due to differences in economic structure optimization, market maturity, and ecological environment credit construction between different economic regions. The key to dealing with emergencies is effective decision-making [3, 4]. This will lead to different risk decisions when decision makers have different risk preferences and taskscenario structures [5; 6; 7]. In fact, preference factors have become increasingly prominent in decision-making research as 1 of the 16 issues that need to be focused on in the future management decision-making research field from the complete rationality view of standardized decision-making theory to the bounded rationality view of descriptive decision-making theory to the latest evolutionary decision-making research [8]. In addition, with frequent turbulence in the international economic market, there are objective issues, such as conflicting goals, information asymmetry, and multiple marginalization of cooperation between member enterprises. The evolution of and variation in risk preferences among member enterprises have become a common phenomenon. With the frequent occurrence of emergency events, their severity and urgency make it difficult for member companies to fully make rational decisions, thereby reducing the effectiveness of emergency decision-making in the supply chain, even bringing catastrophic impacts to the supply chain and triggering a series of economic problems. Therefore, it is important to explore the risk preference characteristics of supply chain member enterprises under emergency events in order to deepen the study of the impact and collaborative mechanism of supply chain member decision-making, thus providing practical guidance for supply chain management theories and methods for enterprises. As supply chain emergencies are usually complex and uncertain, decision-making under emergencies is usually described as a risk decision. According to prospect theory proposed by [PERSON] and [PERSON] [9], people's risk preferences are affected by different expected return states when faced with the same environment, which would further affect their decision-making behaviors. [PERSON] et al. and [PERSON] et al. [10; 11] stated that risk attitude is an important factor that leads to differences between individuals in uncertain decision-making situations. [PERSON] et al. [12] found that the heterogeneity of risk preference is one of the direct causes of emergency decision-making mistakes. [PERSON] et al.