Consumer Financial Literacy, Marketing Communication Design, and Financial Inclusion Outcomes in Rural Nigeria: A Theoretical and Empirical Synthesis

This study develops and empirically tests an original theoretical framework synthesising consumer financial literacy, marketing communication design principles, and financial inclusion outcomes in rural Nigerian communities across the North East and North West geopolitical zones. Financial inclusion remains one of Nigeria's most pressing development marketing challenges, with rural populations, particularly in northern states, recording the lowest access rates to formal financial products and services. While financial literacy is widely cited as an inclusion barrier, the marketing communication mechanisms that most effectively translate literacy improvement into actual financial product adoption remain poorly theorised and empirically underexplored. Drawing on the elaboration likelihood model of persuasion, financial literacy theory, and inclusive marketing design frameworks, the study constructs an original model proposing that communication design variables including message framing, source credibility, cultural congruence, and channel accessibility moderate the conversion of financial literacy gains into inclusion behaviours. A phased intervention study design employs a randomised controlled trial (RCT) framework across 24 rural communities in Adamawa State and Kebbi State, testing systematically varied financial literacy communication interventions over 18 months. Multilevel modelling and difference-in-difference estimation are employed. The study delivers original theory on the design conditions enabling financial literacy communication to drive inclusion in under-served rural Nigerian markets, contributing both a validated intervention framework and foundational theoretical advances to the inclusive and development marketing literature. Keywords: financial literacy, marketing communication, financial inclusion, rural Nigeria, randomised controlled trial