5. Conclusion
Our findings can be summarized as follows: Patents contribute to firm performance, and this contribution is greater (1) the more intense the innovation competition in an area of economic activity and (2) the more recent the patent. Thus, patents, which regulators grant in exchange for innovation's positive external effects, only realize economic benefits for the inventor if the patented inventions are quickly translated into innovations. This is perfectly in line with regulators’ intentions and the general public's interests, because inventions that fail in a competitive market will not lead to change or positive external effects. At the same time, patented inventions providing customers with a unique selling proposition, and which succeed against competition, do lead to change and will, according to our findings, also generate a substantial economic benefit for the inventor.