It would be conceivable to implement a domain model that comprises multiple bounded contexts. However, such a model would not be the easiest solution.
For example, a price change affects search; however, it must not result in a price change for orders that have already been processed in payment. It is easier to store only the current price of a product in the bounded context search, and to store the price of the product of each order in payment, which can also comprise rebates and other complex logic.
Therefore, the simplest design consists of multiple specialized domain models that are valid only in a certain context. Each domain model has its own model for business objects such as customers or products.