기업규모와 기술혁신활동의 연관성: 우리나라 제조업에 대한 실증적 연구 = A Firm Size - Innovative Activity Relationship: An Empirical Study of the Korean Manufacturing Industry

다국어 초록 (Multilingual Abstract)

This paper investigates the relationship between firm size and innovative activity. Firm size is defined in terms of employee number, asset, and sales respectively. R&D intensity and patent statistics are used as proxies for innovative activity. Specific hypotheses about the effect of firm size on the probability of a firm carrying out innovative activities are derived and tested on a sample of 337 listed firms in Korean manufacturing industry for the year 1999, using ordinary least square and logistic regression model. Empirical findings suggest that only when firm size is defined in terms of employee number, firm size has a positive effect on R&D expenditure, and the elasticity of firm size on R&D expenditure is greater than 1. By industry, electric & electronics and steel have a positive relationship between firm size(employee number) and R&D intensity. The hypothesis of inverse U, which means that mid-sized firms perform R&D activity intensively, was rejected. As for patent number, all firm size variables have a positive relationship with innovative activity.