The rise of the walking dead: Zombie firms around the world

We build a comprehensive new dataset spanning listed and private nonfinancial zombie firms across Advanced Economies and Emerging Markets over the past two decades. Our findings reveal a global rise in the prevalence of these unproductive and unviable firms, particularly since the Global Financial Crisis and the Covid-19 pandemic. We show that private firms exhibit lower zombification rates due to their lower average survival rates. Our paper also offers a new perspective on zombie lending drivers: lenders may rationalize zombie lending based on overly optimistic expectations of a recovery in zombies’ future earnings. We then document that macroprudential policies targeting bank capital and loan restrictions can effectively mitigate the adverse effects of zombification. However, strengthening the banking sector alone may not suffice without robust insolvency frameworks prepared to manage firm restructuring and insolvency.