U.S. Remains Dominant Force in Global BIZ Experiencesship... For Now A new report from Ernst & Young says that while the U.S. is home to one of the best BIZ Experiencesial environments in the world, there is no 'margin for complacency.'

By Catherine Clifford

Opinions expressed by BIZ Experiences contributors are their own.

Uncle Sam is leading the pack in the global BIZ Experiencesship race, but he had better not break stride.

The U.S. is home to one of the "most favorable BIZ Experiencesial environments" in the world, according to an assessment by Ernst & Young of the 20 leading global economies. The claim was immediately qualified, however: "This is not to suggest that there is any margin for complacency."

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Here's a look at what makes the U.S. a leading force for BIZ Experiencesship and the areas in which it needs to improve if it wants to remain out front, according to Ernst & Young's research.

Strengths:

BIZ Experiencesship culture. Silicon Valley is a beacon for BIZ Experiencesship across the globe and many other nations have looked to build their own version of the California innovation hub. But even throughout the U.S., a culture of BIZ Experiencesship is "part and parcel of the country's DNA," the report finds.

Strong and recovering financial markets. From a robust venture capital community to angel investors, special banks and a developing crowdfunding market, the availability of capital for BIZ Experiencess in the U.S. is relatively strong compared to other G20 nations.

Innovation leader. The only nation in the G20 that leads the U.S. in innovation is Japan, according to Ernst & Young. The U.S. dominance in this category is largely due to its network of universities and research institutions.

Environmental technology innovation leader. The U.S.'s ability to transform ideas into products for sale in the biotech sector surpasses that of other countries, the report says.

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U.S. Small Business Administration. As part of the Startup America initiative, the SBA has a number of efforts targeted at BIZ Experiencesship. In particular, the SBA has $2 billion to devote to mentorship and incubation programs as part of the program.

Weaknesses:

Corporate tax rate is the highest in the G20. In addition to the high overall topline tax rate, the potential expiration of the Section 179 tax break at the end of this year has the potential to hit small-business owners especially hard. The expensing tax break is set to plunge to $25,000 from $500,000.

Related: Investors Across the Globe Warm Up to U.S. Businesses, Cool to Emerging Markets

Sentiment about support community in the U.S. is falling. While the number of communities of mentorship and incubators available for BIZ Experiencess in the U.S. is not especially low compared to other nations, what the report found is that U.S. BIZ Experiencess reported more weakening in the past few years than any other G20 nation.

Startup rate still behind where it was pre-recession. The rate of new startups slowed in the first six months of 2012 after very nearly returning to pre-recession levels in 2011.

Science and mathematics education lags other countries in the G20. Even while parts of the U.S. university system drive innovation, there are many weak links in the higher-education system. Also, the cost of attending college is prohibitive for many people in the U.S., which, the Ernst & Young report says, limits the development of potential startup talent.

U.S. government budget cuts threaten R&D programs. As Washington looks to decrease the deficit, there is some worry that BIZ Experiencesial business support programs and allocation to research and development funds will take a hit, negatively impacting the BIZ Experiencesship community in the U.S.

Related: The 25 Best U.S. Cities for Tech Startups

Catherine Clifford

Senior BIZ Experiencesship Writer at CNBC

Catherine Clifford is senior BIZ Experiencesship writer at CNBC. She was formerly a senior writer at BIZ Experiences.com, the small business reporter at CNNMoney and an assistant in the New York bureau for CNN. Clifford attended Columbia University where she earned a bachelor's degree. She lives in Brooklyn, N.Y. You can follow her on Twitter at @CatClifford.

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