It is apparent that the coefficient on the index of of protection, method of enforcement and restrictions on PRs is negative (–91.168) and statistically significant at the patent rights), the index score takes a value between zero one percent level, implying that stronger PR protection in a and five, depending on the number of conditions satisfied. [...] Figure 1 plots the index scores for the 11 TPP signatory countries in the year 2010.24 Across the TPP signatories, the In Model 2, the sector difference in the number of Canadian United States had the strongest PR score (4.88) and Peru patents is further accounted for and the following regression and Vietnam had the weakest PR scores (3.42). [...] The index In this section, the sensitivity of the results reported in for the year 2011 is used (the most recent year for which the Table 4 is examined. [...] Across the TPP signatories in 2011, the add sector (and in one specification, country) fixed effects; United States had the strongest CP score (4) and Vietnam use the index of copyright protection for the year 2011; and had the weakest CP score (2.32). [...] The cost of instrument for promoting innovation in countries with patenting includes the costs of applying for and maintaining relatively larger market size and higher productivity in the patent, the costs of enforcement, the costs of defending innovation.