Facts Related to Hyperbolic Discounting CR Time inconsistent preferences, implying a motive for consumers to constrain their own future choices (Laibson, QJE 1997) C Under-saving(Laibson, EER 1998; Diamond and Koszegi PubE 2003 Salanie and Reich, EER 2006) C3 Over-borrowing(Heidhues and Koszegi, AER 2010 C3 Use of commitment device(Basu, AEJ-Micro 2011)  Time inconsistent preferences, implying a motive for consumers to constrain their own future choices (Laibson, QJE 1997)  Under-saving (Laibson, EER 1998; Diamond and Koszegi, JPubE 2003; Salanie and Treich, EER 2006)  Over-borrowing (Heidhues and Kőszegi, AER 2010)  Use of commitment device (Basu, AEJ-Micro 2011) Facts Related to Hyperbolic Discounting