中文摘要：

《劳动合同法》是否提高了企业劳动力成本，一直存有争议。本文以2001—2013年中国A股主板上市公司为样本．从企业劳动力成本总量和结构两个层面研究了《劳动合同法》对微观企业劳动力成本上涨的影响。《劳动合同法》实施之前，企业劳动力成本已经处于快速上涨期，本文没有发现足够的证据表明《劳动合同法》的实施改变了微观企业劳动力成本总量的上涨趋势。进一步研究发现。五险一金比例的增加对劳动力成本总量上升具有增量影响，但这可能并不是《劳动合同法》造成的，而更可能是由《社会保险法》及《住房公积金管理条例》的规定所致，《劳动合同法》强化的是对上述两项法规的执行。但是，由《劳动合同法》实施带来的职工维权环境的改善以及地方政府对企业执行《劳动合同法》不同程度的干预，导致企业五险一金比重出现不同程度的变化。分样本看，《劳动合同法》的实施对不同类型企业的劳动力成本总量和结构产生不同程度的影响。本文的研究发现为正处于争议中的《劳动合同法》是否提高企业劳动力成本提供了实证证据，对以“三去一降一补”为基本内容的供给侧结构性改革提供了实证参考。

英文摘要：

Whether the Labor Contract Law raises the enterprise labor cost has been a controversial topic. Taking 2001--2013 China A-share companies listed on the main board as samples, this paper studies the effect of the Labor Contract Law on the rise in the labor cost of micro-enterprise from the views of both enterprise labor cost quantum and structure. The enterprise labor cost has been in a rapidly rising stage in prior to the implementation of the Labor Contract Law. We find that there is no sufficient evidence to show that the implementation of the Labor Contract Law changes the rising trend for the micro-enterprise labor cost quantum. We further reveal that the increase in the ratio of five social insurance and one housing fund has additional effect on the rise in the labor cost quantum. However, this is incurred by the Social Insurance Law and the Regulations on the Management of Housing Provident Fund rather than the Labor Contract Law, which intensifies the enforcement of the above two regulations. However, the improvement of employee rights protection environment brought by the enforcement of the Labor Contract Law and the local government intervention to the enforcement of the Labor Contract Law, increase the ratio of the five social insurance and one housing fund to labor cost quantum in various degrees. From the view of subsample, the enforcement of the Labor Contract Law has different impact on the labor cost quantum and structure among enterprises of different type. This paper provides empirical evidence for the debate that whether the Labor Contract Law raises the labor cost of the enterprise, and provides empirical reference for structural reform of the supply front with the basic content of cutting down overcapacity, destocking and deleveraging, reducing corporate costs and shoring up weak spots.