Household finance—the normative and positive study of how households use financial markets to achieve their objectives—has gained a lot of attention over the past decade and has become a field with its own identity, style, and agenda. In this chapter we review its evolution and most recent...

We analyze whether the frequent use of credit lines is rational or influenced by behavioral traits of households. We consider the special case of Germany where credit lines on current accounts are available to 80% of the population. We document that the excessive usage of costly credit lines is...