In this experimental procedure, participants are randomly assigned to groups of two, comprising one Seller and one Buyer. The Seller has the capacity to produce a product and offer it for sale to the Buyer. The cost of production is randomly determined between 0 and 600, with each integer having an equal likelihood. Similarly, the value of the product to the Buyer is randomly selected between 0 and 1000, again with equal probabilities for each integer. In the LD, there are three stages: proposing the contract (buyer), accept or reject the contract (seller), deliver the project or not after observing the cost(seller). In the OD, there is an additional 4th stage, where the buyer can decide whether to veto the action of not delivering the project. We add a cheap talk as additional treatments to see how communication between two parties can impact the outcome.