Same old song: On the macroeconomic and distributional effects of leaving a Low Interest Rate Environment

Alberto Botta, Eugenio Caverzasi and Alberto Russo

No PKWP2310, Working Papers from Post Keynesian Economics Society (PKES)

Abstract: This paper analyzes the macroeconomic and distributional implications of central banks’ decisions to raise interest rates after a prolonged period at near the Zero Lower Bound (ZLB). The main goal of our study is to assess the interaction between monetary policy, inequality, and financial fragility, in a financialized economic system. Financialization is here portrayed as the presence in the economy of complex financial products, i.e., asset-backed securities, produced via the securitization of banks’ loans. We do so in the context of a hybrid Agent-Based Model (ABM). We first compare the prevailing macroeconomic and financial features of a low interest rate environment (LIRE) with respect to a “Great Moderation”(GM)-like setting. As expected, we show that LIRE tends to stimulate faster growth and higher employment, and to reduce income and wealth inequality, as well as (poor) households’ indebtedness. Consistent with existing empirical literature, this comes at the cost of higher inflation and some signs of financial system’s fragility, i.e., lower banks’ profitability and Capital Adequacy Ratio (CAR), and higher “search for risk” given by credit extension to poorer households. We then show that increases in the central bank’s policy rate, as motivated by the central bank’s willingness to reduce inflation, effectively curb price dynamics and accomplish with central bank’s inflation targeting mandate. Higher interest rates also improve commercial banks’ CAR and profitability. However, they also cause a pronounced increase in non-performing loans (stronger than what possibly observed in a GM scenario) and some worrisome macro-financial dynamics. In fact, higher interest rates give rise to higher households’ and overall economy indebtedness as allowed by wealthier households’ demand for high-yield complex financial products and mounting securitization. We finally show how financialization structurally changes the functioning of the economy and the behavior of central banks. Financialization actually contributes to create a (private sector) debt-led economy, which becomes structurally more resistant to central bank’s attempts to control inflation. Central bank’s reaction in terms of higher interest rates could likely come with perverse distributional consequences.

Keywords: Low interest rate environment; Contractionary monetary policy; Securitization (search for similar items in EconPapers)
JEL-codes: E24 E44 E52 (search for similar items in EconPapers)
Pages: 23
Date: 2023-09
New Economics Papers: this item is included in nep-ban and nep-mon
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https://postkeynesian.net/media/working-papers/PKWP2310.pdf First version, 2023 (application/pdf)

Related works:
Journal Article: Same old song: On the macroeconomic and distributional effects of leaving a Low Interest Rate Environment (2024)
Working Paper: SAME OLD SONG: ON THE MACROECONOMIC AND DISTRIBUTIONAL EFFECTS OF LEAVING A LOW INTEREST RATE ENVIRONMENT (2023)
Working Paper: Same old song: On the macroeconomic and distributional effects of leaving a Low Interest Rate Environment (2023)
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