物资流通体制的改革是我国经济体制尤其是计划体制改革的一个有机组成部分,而物资企业横向经济联合则是物资流通体制的一项重大改革,有其客观的必然性,这种客观必然性可从其内外环境因素中得到证明。从外部环境看: 1、物资企业横向经济联合是发展社会生产力的客观要求物资企业通过发展横向经济联合,可以打破地区、部门封锁,使原先单个的企业联合化,发挥各自优势,扬长避短,互惠互利,以提高整个物资企 The reform of the material circulation system is an integral part of the reform of China’s economic system, especially the planned system. The horizontal economic coalition of material enterprises is a major reform of the material circulation system. It has objective inevitability. This objective necessity can be derived from Internal and external environmental factors have been proved. From the external environment: 1. The horizontal economic unity of material companies is an objective requirement for the development of social productive forces. Through the development of horizontal economic alliances, material enterprises can break the blockade of regions and departments, consolidate the original individual enterprises, exert their advantages, avoid weaknesses, and achieve mutual benefits. To raise the total material price