Template-Type: ReDIF-Paper 1.0 Author-Name: Domenico Delli Gatti Author-X-Name-First: Domenico Author-X-Name-Last: Delli Gatti Author-Email: domenico.delligatti@unicatt.it Author-Workplace-Name: Università Cattolica del Sacro Cuore Author-Workplace-Name: Dipartimento di Economia e Finanza, Università Cattolica del Sacro Cuore Author-Name: Gabriele Iannotta Author-X-Name-First: Gabriele Author-X-Name-Last: Iannotta Title: Behavioural credit cycles. Abstract: We explore the intertwined dynamics of asset prices and the macroeconomy in a Behavioural model of Credit Cycles (BCC) characterized by a credit friction a' la Kiyotaki and Moore and heterogeneous expectations cum heuristic switching a la Brock and Hommes. This behavioural approach allows to better understand and replicate the effects of shocks. In the absence of actual defaults, following a positive productivity shock, our behavioural model (BCC Mark I) generates hump-shaped impulse-response functions that are more realistic than those generated by the same shock in a corresponding model with rational expec- tations (RCC). When the behavioural model allows also for defaults (BCC Mark II), a productivity shock triggers ample and persistent uctuations (if the intensity of choice of the lender is suciently high), a feature that is absent in BCC Mark I (and of course in RCC). Length: 67 Creation-Date: 2022-09 File-URL: http://dipartimenti.unicatt.it/economia-finanza-def119.pdf File-Format: Application/pdf File-Function: First version, 2022 Number: def119 Classification-JEL: E32, E44, D84. Keywords: Credit Market, Collateral Constraints, Heterogeneous Expectations, Bankruptcy, Boom Bust Cycles. Handle: RePEc:ctc:serie1:def119