Influence of internet on innovation of China’s manufacturing importers
【Abstract】Using the data of China’s manufacturing importers, this paper examined the micro-impact as well as the mechanisms of Internet on innovation. The study found that the Internet has significantly improved the level of innovation in China’s manufacturing importers. And the effect is more prominent in large-scale, high-efficiency, private, exporting, capital- and technology-intensive eastern firms. Further, the Internet mainly promotes firms’ innovation by improving the quality of imported products, and neither the effects of the types of imported product nor the effects of imported scale are obvious. Finally, while promoting the independent innovation of manufacturing importers, the Internet has also significantly improved the level of collaborative innovation. This paper has certain practical significance for improvement of the competitiveness and the quality of China’s manufacturing industry in the era of digital economy.
【Keywords】 Internet; manufacturing importers; innovation; propensity score matching;
. ① The core field for the identification of websites: “www” “com” “cn” “net” “http” “con” and “//”; and the core field for the identification of emails: “@.” [^Back]
. ① We delete any enterprise sample with missing values, zero values or negative values in total industrial output, enterprise sales, fixed assets, net value of fixed assets and annual average number of employees; the samples of enterprises with missing or negative values in any one of the wages payable, welfare payable, industrial value added and intermediate product input in 2004-2007; the samples of enterprises with less than eight employees; the samples of enterprises with missing operating profit; the samples of enterprises established before 1949, and the samples of enterprises whose age are less than 0. In addition, according to the practice of Freenstra et al.(2014), in order to comply with the general accounting standards, this paper processes the following data: excluding the enterprises with current assets exceeding fixed assets and those with total fixed assets exceeding total assets; excluding the enterprises whose export delivery value is greater than sales revenue and the enterprises whose depreciation of this year is greater than the accumulated depreciation. [^Back]
. ① Due to space limitation, complete regression results are available upon request. [^Back]
. ① The database includes the patent applications and authorization of listed companies, non-listed companies and different regions in China. It not only considers the number and types of patents applied or authorized by different entities, but also includes the independent application, patent acquisition, joint application and patent acquisition with other entities. We match the enterprise name index in the database with the enterprise name in this sample, and take the logarithm of the patent data. [^Back]
. ② It is worth noting that after matching, the sample size of this paper is greatly reduced, so in this part, the proportion of PSM nearest neighbor matching is expanded, and the original 1:5 matching proportion is relaxed to 1:7. In addition, we further expand the matching ratio to 1:8, 1:9 and 1:10, and the regression results do not change significantly, which shows that the regression results have certain robustness. [^Back]
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