Market Integration and Price Transmission in Major Potato Markets of India

The study examined the relationship between arrivals and prices of potatoes as well as price volatility and market co-integration in selected Indian markets. Results showed a significant negative correlation in Pune market during January, and in Delhi (March), Hyderabad (October and December), and Agra (July, October, and November), indicating that arrivals and prices moved in opposite directions in these months. Potato prices were found to be co-integrated across markets, suggesting efficient, competitive, and closely linked systems. Bidirectional causality was observed in Mumbai-Pune, Pune-Bengaluru, and Bengaluru-Hyderabad pairs. In contrast, unidirectional causality existed among Delhi-Mumbai, Mumbai-Bengaluru, Mumbai-Hyderabad, Agra-Mumbai, Delhi-Pune, Pune-Hyderabad, Ahmedabad-Pune, Agra-Pune, Delhi-Agra, Agra-Bengaluru, and Agra-Hyderabad. Overall, the results confirmed strong co-integration of potato markets in India, limiting government intervention and supporting private trade