1998年某市人民政府颁发4号文件，规定了外地生猪禁止进入本市生猪市场的具体办法。文件规定：在本市行政区域内，农贸市场只允许销售本地生猪肉，外地生猪禁止进入本地市场，违者将予以行政处罚。4号文件实施后，周边地区一直向该市供应生猪的养殖户不服此规定，以政府行为缺? In 1998, a Municipal People’s Government issued Document No. 4, which stipulated the specific measures for prohibiting foreign pigs from entering the local pig market. The documents stipulate that in the administrative area of ​​this municipality, the farmer’s market only allows the sale of local raw pork and the foreign pigs are forbidden to enter the local market, and the offenders will be subject to administrative penalties. After the implementation of Document No. 4, farmers living in the surrounding areas who have been providing live pigs to the city disobeyed this regulation and their government behavior was lacking.