Supply chain coordination is among the most important issues in supply chains. In the literature, supply chain contracts are used for coordination of supply chain decisions. One of the important obstacles for implementation of contracts is information uncertainty or information asymmetry. Focusing on this subject, in this thesis, three problems are investigated: 1. Implementation of the widely used revenue sharing contract, in case of information asymmetry about contract partner’s cost. In this problem, considering a manufacturer and a retailer working in the situation of newsvendor model, three approaches are addressed. It is assumed that the manufacturer has some discrete estimations from the retailer’s cost. Optimal features of the approaches, in specific cases which are considerable in practice, are investigated. In this problem, contract design with the downstream member in a supply chain is investigated. 2. Outsource planning, in case of information asymmetry about supplier’s cost. In this problem considering a manufacturer and a supplier, a different approach from the ones investigated in problem 1, is investigated. The manufacturer, having some discrete estimations from the supplier’s cost, designs a buy-back contract for the supplier. Optimal features of this approach are investigated as well. In this problem, contract design with the upstream member in a supply chain is investigated. 3. Contract design in a three echelon supply chain, in case of cost and demand uncertainty. In this problem considering a supplier, a manufacturer as contract designer and a retailer, manufacturer’s supply order, in case of uncertain information from retailer’s cost and customer’s demand is investigated. The manufacturer, places order to the supplier according to the bidirectional option contract and the retailer places order to the manufacturer according to the buy-back contract. Optimal features of these contracts are investigated. In this problem, contract design with both downstream and upstream members in a supply chain is studied.
