Introduction

When we shop for consumer durables like furniture, some electronic equipment, a car etc. we usually have to make a number of interdependent decisions. We decide about which store to check, what characteristics we want the product to have, what price we are willing to accept. If we cannot find the product we want at an acceptable price at the first store, we will have to think about another store, and maybe have to revise our aspirations about characteristics and price. When we fail at the second store as well, we will have to decide about a third, fourth, fifth store, and so on.