臺大管理論叢 NTU Management Review VOL.29 NO.1

Post-Disaster Grain Supply Chain Management with Supplier Hoarding and Regime Intervention 32 3.1 Supplier Belief in Future Earnings Due to grain supply shortages, a grain supplier may forecast increasing price in the recent grain market. If the shortage is more serious, the grain price rises before supply chain recovery. It is only natural to speculate that a grain supplier may predict increased goods price and revenues if a grain supply shortage is extended (De Dreu, 2006). This relationship is also based on the theory of reasoned action (Fishbein and Ajzen, 1975). When a supplier’s expectation of earnings increases, the supplier’s hoarding intention increases. A supplier’s expectation about the consequences of an action means outcome expectancy, and that is regarded as the main factor inspiring the hoarding intention. Thus, we presuppose: H1. A supplier’s belief in future earning s is positively correlated with the intention of supplier hoarding behavior post-disaster. 3.2 Supplier Attitude towards Weakened Operational Shock-wave after a Disaster Intentions are based on personal attitude; this is a concept that has been accepted for half a century. (Fishbein and Ajzen, 1975). A famous consumer behavior theory is the theory of reasoned action (TRA) which establishes constant causal relationships among beliefs, attitude, intention, and behavior (Ajzen, 1991, 2005). Attitude is developed according to beliefs identified with perceived object characteristics disputed the idea (Ajzen, 2005). In this study, we disputed the idea that a grain supplier’s attitude toward weakened operational shock-wave after a disaster is negatively correlated with supplier hoarding intention after grain supply chain disruption. Indeed, a supplier who maintains a positive attitude post-disaster in regards to a reduction in costs associated with the loss of a contract, sustainability of business operations, and post-disaster operational resource availability may increase the supplier's willingness to reinstate a normal supply to customers (Argyres and Liebeskind, 1999; Tang, 2006). From the literature on applied psychology, humans naturally seek for personal interests, advantages and tend to be self- concerned (Cropanzano et al., 2005). Being self-concerned leads to people engaging in activities that are advantageous to oneself. Thus, supplier hoarding intention is correlated to a supplier’s attitude toward weakened operational shock-wave after a disaster. We hypothesize: H2. A supplier's attitude toward weakened operational shock-wave negatively affects the supplier’s hoarding intention after a disaster.