Returning to the nest: Debt and parental co-residence among young adults

In standard life-cycle models, borrowing enables young adults to smooth consumption, but for those who are indebted and face high borrowing costs, parental co-residence could serve as an alternative smoothing mechanism. Using panel data derived from credit reports, we begin by documenting an association between debt characteristics - including credit risk, delinquency and loan balances on student loans, auto loans and credit cards - and subsequent entry into, and durations in parental co-residence. We find relationships consistent with parental co-residence as a smoothing mechanism for young adults facing borrowing constraints. We then formally test the hypothesis that credit accessibility affects co-residence choice by analyzing plausibly exogenous reductions in credit card limits initiated by banks during the Great Recession. We find that young adults who experienced limit reductions were 5% more likely to enter co-residence, and stayed 4% longer in co-residence. The effects of credit limit reductions were larger for young adult borrowers who were closer to their credit limit before the reduction.