Study on Influencing Factors of Tourism Income in Yantai City Based on Multiple Linear Regression Analysis

As one of the first coastal open cities in China, Yantai City is situated in the eastern Shandong Peninsula, bordered by the Yellow Sea and Bohai Sea. With the continuous improvement of tourism infrastructure, public enthusiasm for tourism in Yantai has been growing. To formulate more effective tourism development policies tailored to the local context, this study examines Yantai City using a multiple linear regression model to identify the primary factors influencing domestic tourism income. Based on the findings, this paper proposes scientifically grounded and actionable strategies to further optimize the development of tourism in Yantai City.