“…This result is standard in the AK model with habit formation (e.g., Carroll et al, 1997, 2000, Alonso-Carrera et al, 2005, 2006, Gómez, 2008, and also in the neoclassical growth model with habits (e.g., Alonso-Carrera et al, 2005, Álvarez-Cuadrado et al, 2004, and Gómez, 2007 when labor supply is inelastic. 4 In contrast, multiple steady states may emerge in the presence of external habits when labor supply is elastic (see, e.g., Chen et al, 2009).…”