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Research on the relationship between mixed ownership reform and cost stickiness based on OLS model

The problem of cost stickiness refers to that when the enterprise's income decreases, the range of cost decrease will be smaller than that of the same proportion when the enterprise's income rises, which makes the enterprise face greater risks when the income decreases. In recent years, the mixed ownership reform of state-owned enterprises has been advancing steadily, which has enhanced the competitiveness and vitality of state-owned enterprises. However, the research on the impact of mixed ownership reform on the phenomenon of corporate cost stickiness is still not in-depth. This paper studies the A-share state-owned listed companies in Shanghai and Shenzhen from 2016 to 2019 using OLS model to explore whether there is cost stickiness and whether the promotion of mixed reform can inhibit the cost stickiness. It is found that there is a problem of cost stickiness in state-owned enterprises. At the same time, with the increase of non-state-owned shareholders' shareholding ratio, the problem of cost stickiness has been alleviated to a certain extent. This paper makes up for the relevant blank, and proves that the mixed reform has positive economic effect from the perspective of reducing cost stickiness.