Stock Market Literacy, Trust and Participation

Abstract

Stock-market participation rates differ sharply across households with comparable income, wealth, and education, and standard demographic models leave a substantial share of the dispersion unexplained. The behavioural-finance literature has converged on two candidate constructs to explain the residual: financial literacy (the practical knowledge required to evaluate market opportunities) and trust in financial institutions (the willingness to entrust savings to intermediaries). What has been less clear is whether these two operate as independent drivers, or whether one is the principal channel and the other a confounder.

This paper disentangles literacy and trust contributions to participation using a cross-country financial-literacy survey linked to stock-market participation indicators. We apply probit estimation, instrumental-variable identification to address measurement-and-selection concerns on literacy, and decomposition methods to quantify the literacy, trust, and demographic shares of the participation gap. The behavioural construct framework treats both literacy and trust as non-cognitive prerequisites for market entry — distinct from access and cost barriers.

We find that both literacy and trust operate as independent and substantial drivers of stock-market participation. Each survives controls for the other, and the effect concentrates among households who are otherwise economically capable of investing — those for whom access and cost are not the binding constraints. The findings sharpen the case for joint literacy-and-trust interventions in financial-inclusion policy and demonstrate that information-only programmes, which address literacy without rebuilding institutional trust, leave a meaningful share of the participation gap unexplained. Published in the Review of Finance (2015), the paper sits in the Psychological Capital research line and is a methodological precursor to the working-paper companions on self-efficacy and locus-of-control as non-cognitive determinants of household financial behaviour.

Data & Methods