Coupling coordination of scientific and technological innovation and high-quality development of Baijiu industry

Based on the panel data of several Baijiu production provinces from 2011 to 2021, the evaluation index system of scientific and technological innovation (STI) and high-quality development of Baijiu industry was constructed. The comprehensive index measurement was analyzed by fixed-base polar deviation method and critical method improved by criteria importance through intercriteria correlation (CRITIC), the coordination relationships and evolution trends of the system of STI and high-quality development of Baijiu industry were explored using the coupling coordination degree model, and the transfer rule was further explored through Markov chain. The results showed that the degree of coupling coordination between STI and the high- quality development of Baijiu industry fluctuated and rose, presenting the spatial distribution characteristics of high in the east and west and low in the north and south, and forming the pattern of high-quality development of Baijiu provinces along the Yangtze River Basin. The type of coupling coordination gradually shifted from serious dysfunctions to high-quality coordination, but the coupling coordination process was unstable and difficult to achieve leapfrog development. The results had a certain theoretical and practical significance for the synergy of STI and high-quality development of Baijiu industry.