TY - JOUR AU - Benigno,Pierpaolo AU - Karantounias,Anastasios TI - Overconfidence, Subjective Perception and Pricing Behavior JF - National Bureau of Economic Research Working Paper Series VL - No. 11922 PY - 2006 Y2 - January 2006 UR - http://www.nber.org/papers/w11922 L1 - http://www.nber.org/papers/w11922.pdf N1 - Author contact info: Pierpaolo Benigno Dipartimento di Economia e Finanza Luiss Guido Carli Viale Romania 32 00197 Rome ITALY Tel: 39-0685225-552 E-Mail: pierpaolo.benigno@eief.it Anastasios Karantounias 1000 Peachtree St NE, Atlanta GA 30309 E-Mail: anastasios.karantounias@atl.frb.org AB - We study the implications of a particular form of irrationality on the pricing behavior of firms in a monopolistic-competitive market with incomplete information. We assume that firms are overconfident, meaning that they over-estimate their abilities to understand the correct model of the economy. However, we allow firms to obtain information by paying a fixed cost. We find two important implications: i) overconfident firms are less inclined to acquire information; ii) prices might exhibit excess volatility driven by non-fundamental disturbances. We use our model to match some facts related to recent empirical evidence on disaggregated price data for the US economy. ER -