Table 1: Impact of different yield variabilities on the supply chain.

Models Contract parameters(a, b) Total

Decentralized model under traditional arrangement ( , ) (17.96, 20.18)(0.50, 0.90)17.59114.78 1.6192.11556.49 161.48810.08
(0.45, 0.95) 19.62114.461.6391.13531.74180.11802.98
(0.40, 1.00)22.33112.251.6589.71501.86205.02796.59
(18.40, 20.52)(0.50, 0.90)16.49112.831.6163.84563.02156.96783.82
(0.45, 0.95)18.51112.461.6362.90537.68176.29776.87
(0.40, 1.00)21.22110.211.6561.56507.10202.06770.71
(18.84, 20.86)(0.50, 0.90)15.34110.911.6136.33569.10151.27756.70
(0.45, 0.95)17.36110.491.6335.45543.19171.26749.89
(0.40, 1.00)20.07108.201.6534.17511.90197.91743.99

Coordination under the combined contract ( , , , ) (17.9, 20.18, 16.5, 240)(0.50, 0.90)45.64158.911.00359.20596.39178.951134.54
(0.45, 0.95)49.85152.911.00355.88553.78217.651127.32
(0.40, 1.00)54.29146.271.00352.12508.64258.391119.15
(18.40, 20.52, 17.0, 250)(0.50, 0.90)45.64158.911.00330.48619.59184.461134.54
(0.45, 0.95)49.85 152.91 1.00 327.31 575.41 224.60 1127.32
(0.40, 1.00) 54.29146.271.00323.71528.59266.851119.15
(18.84, 20.86, 17.5, 260)(0.50, 0.90)45.64158.911.00301.77642.79189.981134.54
(0.45, 0.95) 49.85152.911.00298.73597.03231.55 1127.32
(0.40, 1.00) 54.29146.271.00295.31548.54275.311119.15