Impact of Regional Agricultural Product Branding on Income Inequality: Evidence from Guangdong Province, China

Agricultural product branding promotes regional economic development by enhancing brand value and market competitiveness, serving as a vital pathway for increasing farmers’ incomes and advancing the transformation of modern agriculture. This paper transcends one-dimensional analysis by examining the dual perspectives of urban-rural income disparities and regional income gaps, thereby revealing the impact of regional agricultural product branding on income inequality. This study employs panel data from 82 counties in Guangdong Province spanning the years 2010 to 2023, comprising a total of 1148 observations, and treats the Ministry of Agriculture and Rural Affairs’ designation of “famous, special, excellent, and new” agricultural products as a policy hit. Employing a multi-period difference-in-differences model, it empirically examines the impact of regional agricultural product branding (RAPB) on income inequality. The study found the following: (1) RAPB narrowed the urban-rural income gap by 0.92% and Theil decreased significantly by about 15.3% on average. (2) Mechanism analysis indicates that RAPB mitigates income inequality through resource allocation effects, technological progress effects, and human capital accumulation effects. (3) Heterogeneity tests reveal that the inequality-alleviating effect of RAPB is most robust in regions focused on crop cultivation and areas with lower levels of agribusiness vitality, while its effect is weakened in dynamic entrepreneurial and high-yield regions. This study provides a new value metric for evaluating regional brand policies that balance efficiency and equity, revealing their core potential in promoting social fairness and coordinating urban-rural and regional development.