The article explores how people negotiate flexible contracts when some details are not clear until later. They create a game to show how negotiations can work in stages, even when information is hidden at first. The research suggests that when parties bargain based on shared interests, they tend to reach agreements. As discussions become smoother, solutions start to match a well-known theory by Myerson. In the end, the research hints that if deals are made in a step-by-step manner, they often end up being the most efficient in the long run.