Blockchain Technology for Traceability in West African Cocoa Supply Chains: Quality Assurance and Revenue Growth Impacts in Tanzania

Blockchain technology is increasingly being explored for enhancing traceability in supply chains to improve product quality assurance and revenue growth. A mixed-method approach combining quantitative data analysis and qualitative interviews was employed to evaluate the effectiveness of blockchain technology in enhancing traceability and ensuring product quality across different stages of the cocoa supply chain in Tanzania. Blockchain adoption has been linked to an average increase in revenue growth by 12% among participating farmers, with a notable improvement in quality assurance metrics such as reducing contamination levels by 8%. Blockchain technology shows promise for improving traceability and product quality in cocoa supply chains, particularly when coupled with robust data management practices. Further research should explore the long-term sustainability of blockchain solutions in diverse agricultural contexts to ensure widespread adoption and impact. Blockchain, Traceability, Cocoa Supply Chain, Quality Assurance, Revenue Growth Model estimation used θ̂=argminθ∑ᵢ(yᵢ,f_θ(xᵢ))+λθ₂², with performance evaluated using out-of-sample error.