Animal spirits, bankruptcies, and monetary policy effectiveness in a hybrid macroeconomic agent-based financial accelerator model

Davide Bazzana ()
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Davide Bazzana: University of Brescia

Journal of Evolutionary Economics, 2024, vol. 34, issue 1, No 2, 29-61

Abstract: Abstract This paper develops a hybrid model with an agent-based financial accelerator framework embedded in a standard new Keynesian economy. It explores the interactions between the financial accelerator and the credit market, focusing on the effects of bankruptcy. The paper replicates credit-market relationships, modeling various credit crunch scenarios. It uncovers endogenous fluctuations and “animal spirits” in entrepreneurs’ expectations, driving investment and production decisions. Notably, higher pro-cyclical leverage can have destabilizing effects in the presence of small shocks, increasing entrepreneurs’ bankruptcies. The results suggest that monetary policy’s effectiveness in stabilizing fluctuations depends on factors such as heterogeneity, bounded rationality, and heuristic updating mechanisms. Moderate monetary policies perform better in terms of economic growth with moderate-to-low volatility, while aggressive policies on inflation assist bounded rational agents in reducing errors in investment decisions and default rates, fostering a more stable macroeconomic environment. Increasing forecasting options introduces diversification among entrepreneurs, reducing volatility and stabilizing investments. More options mitigate investment fluctuations, acting as a counterbalance to prevailing market sentiments. Over time, individuals weakly adhering to trends or adopting contrarian approaches come to dominate the population of entrepreneurs, enhancing the overall stability of investment decisions.

Keywords: Heterogeneity; Financial accelerator; Bankruptcy; Monetary policy (search for similar items in EconPapers)
JEL-codes: C63 E32 E44 E52 (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s00191-024-00856-8

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