In July 2022, facing a sharp escalation in global energy prices and persistent supply bottlenecks, the European Central Bank (ECB) Governing Council raised its key interest rates for the first time in 11 years. Over the subsequent 14 months, the ECB embarked on its most rapid monetary tightening cycle since the creation of the single currency, lifting the main refinancing operations rate from 0.0% to 4.5% by September 2023.
While headline Harmonised Index of Consumer Prices (HICP) inflation peaked at 10.6% in October 2022 and subsequently began to decline, the ECB remained highly concerned about core inflation (which excludes volatile food and energy prices) and the threat of wage-price spirals. Labor markets across major Eurozone economies remained exceptionally tight, with low unemployment rates fueling strong nominal wage growth.
However, the ECB’s task is uniquely complicated by the structure of the single currency union. Raising interest rates disproportionately increases the borrowing costs of highly indebted southern member states (such as Italy and Greece) compared to northern states (such as Germany), risking sovereign debt market 'fragmentation'—a widening of bond yield spreads that can disrupt the smooth transmission of monetary policy. To mitigate this risk, the ECB introduced the Transmission Protection Instrument (TPI).
Furthermore, the stagnation of Eurozone real GDP growth, which hovered between -0.1% and +0.1% throughout 2023, led several economists to warn that aggressive rate hikes risked tipping the Eurozone into a deep recession, while others argued that failing to raise rates would unanchor long-term inflation expectations.
[A line graph showing Euro Area core HICP inflation and annual nominal wage growth. Core HICP inflation remains stable below 2.0% from 2018 to 2021, before rising sharply to a peak of 5.7% in early 2023. Nominal wage growth fluctuates around 2.0% to 2.5% pre-pandemic, spikes briefly during recovery, and then rises steadily to average over 5.0% in 2023.]
[A bar chart showing Euro Area quarterly real GDP growth. Growth is stable at around 0.2% to 0.4% in 2018–2019, drops sharply in 2020, and rebounds in 2021. Throughout late 2022 and 2023, quarterly GDP growth is stagnant, fluctuating narrowly between -0.1% and +0.1%.]
Discuss the factors, other than changes in the headline rate of HICP inflation, which the European Central Bank (ECB) Governing Council may have considered when deciding to repeatedly increase its key interest rates between July 2022 and September 2023.
