The U.K. is in danger of being left behind when it comes to infrastructure investment and education over the next 10 years, according to Goldman Sachs' Chief U.K. Economist Kevin Daly, increasing the pressure on the government as it prepares to deliver a key economic policy package this week.
Speaking at a presentation about the U.K. economy on Tuesday, Daly said: "If I think of the relative strengths and weaknesses of the U.K. in the long term, I would argue that the U.K.'s two relative weaknesses are infrastructure and education."
"Relative to its peers, its infrastructure is relatively poor; its education is relatively poor."
(Read more: UK Chancellor to boost forecasts but keep belt tight)
His comments come on the same day that the Organization for Economic Co-operation and Development (OECD) published the results of its most recent international study of students, showing that the U.K. ranked just 26th out of 65 countries for maths.
Meanwhile, analysis by the Financial Times highlighted "slow, if not minimal" progress on many of the country's infrastructure schemes.
In the OECD report, Britain failed to move up the rankings from the 2009 Programme for International Student Assessment (Pisa), and did not make the top 20 in maths, literacy or science.
By contrast, students in Asia stormed ahead, with Shanghai, Singapore and Hong Kong taking the top three spots. (China is represented by some of its cities, rather than as a country.)
The Confederation of British Industry (CBI) business organization said the PISA results should act as a "wake-up call."
"High-performing schools are the best way to support economic growth and greater opportunity," Katja Hall, CBI chief policy director, said in a statement. "No issue matters more to the U.K. economy over the long term than the quality of our education system."