Reserve Accumulation, Domestic Credit Expansion, and Financial Integration: Subordinate Financialization in Small Island Developing States

Abstract: Since the early 2000s, small island developing states (SIDS) have become increasingly integrated into hierarchical global financial structures, accumulating substantial foreign exchange reserves and undergoing a transformation of their domestic financial structures. Using quarterly panel data for 27 SIDS over 2001Q4--2024Q1, this paper applies panel local projections to examine how central bank reserve accumulation relates to the balance sheets of the central bank and of other depository corporations (ODCs). The findings show that central bank reserve accumulation coincides with a broad-based expansion of ODC balance sheets, with higher cross-border assets and liabilities, mostly in foreign currency, and higher domestic credit. On the central bank balance sheet, most of the increase appears in the monetary base, mainly in the form of higher ODC reserve deposits at the central bank. This expansion, however, takes different forms across the sample. In pegged and tourism-dependent economies, foreign currency positions remain elevated while the credit response is short-lived, whereas in floating and non-tourism-dependent economies, domestic credit expands more and for longer. The largely contemporaneous co-movement between reserves and bank balance sheets is more consistent with a subordinate financialization view, in which reserve accumulation shifts rather than removes external vulnerability, than with the conventional precautionary view. The paper thereby contributes to the financial subordination literature by documenting how reserve accumulation is associated with a transformation of the domestic financial systems in these vulnerable economies.