The Effect of Financial Sector Reforms on Economic Stability in Nigeria: 2004 to 2022

Nigeria has implemented multiple far-reaching financial sector reforms over the past two decades, including the 2004 to 2006 banking consolidation, the introduction of the contributory pension scheme, insurance sector recapitalisation, and the ongoing fintech regulatory framework, each with potential cumulative effects on macroeconomic stability. This study empirically examines the effect of financial sector reform episodes on economic stability in Nigeria between 2004 and 2022, using a structured reform index constructed from reform intensity scores derived from the International Monetary Fund's Financial Reform Database and Nigerian regulatory announcements. Economic stability is assessed through inflation volatility, output gap stability, credit cycle amplitude, and financial sector distress indicators sourced from the Central Bank of Nigeria and the National Bureau of Statistics. The study employs a generalised autoregressive conditional heteroskedasticity-in-mean model to capture the dynamic relationship between reform intensity and macroeconomic volatility, and an event study framework to assess the immediate market and macroeconomic responses to specific reform announcements. The theoretical framework integrates the financial structure-stability literature, the institutional quality-growth nexus, and the sequencing of financial reforms theory. The analysis critically evaluates whether the pace and sequencing of reforms in Nigeria was consistent with the absorptive capacity of its institutional environment. Existing evaluations of Nigerian financial sector reforms have been largely qualitative or single-episode focused. This study provides the first multi-episode quantitative analysis of the reform-stability nexus, with findings relevant to the Central Bank of Nigeria, the Federal Ministry of Finance, and the Financial Stability Board's engagement with Nigeria. Keywords: financial sector reforms, economic stability, Nigeria, banking consolidation, reform sequencing