发达国家如美国、日本、德国等和新兴市场国家如新加坡等对民科企的保护、支持措施的力度之大的原因在于:民科企在国民经济中均占有重要地位。如日本经济能迅速发展的重要原因在于积极扶持和改造众多的中小企业,促进它们现代化。日本的中小企业占企业总数的99.5％,就业人数占总数的80％,对GDP的贡献达40％,上交税金占财政收入的30％,对工业总产值的贡献达51％。 The reason why the developed countries such as the United States, Japan, Germany and emerging market countries such as Singapore protect and protect the science and technology enterprises is that they all occupy an important position in the national economy. As Japan's economy can rapidly develop important reason is that actively support and transform a large number of SMEs to promote their modernization. Japan's SMEs account for 99.5% of the total number of enterprises, employing 80% of the total, contributing 40% of GDP, paying taxes account for 30% of the fiscal revenue, and contributing 51% to the total industrial output value.