Can farmers' adaptation to climate change be explained by socio-economic household-level variables?

► We develop a novel activity-based adaptation index (AAI). ► The AAI addresses weighting problems of previous index studies. ► We define socio-economic household-level determinants of adaptation. ► We quantify determinants of adaptation by means of explanatory factor and regression analyses. ► In our case, investment in infrastructure, inputs, education, financial and social capital is likely to improve adaptation best.