The Assessment, presented in Paris by Chief Economist Pier Carlo Padoan, says that the G7 economies are expected to grow at an annualised 2.4 per cent rate in the first quarter of 2013 and at a 1.8 percent rate in the second. It notes that financial markets are out-pacing real activity, which has been held back by weak business and consumer confidence, and highlights the risk that asset prices may rise beyond levels justified by fundamentals.

“The global economy weakened in late 2012 but the outlook is now improving for OECD  economies,” Mr Padoan said. “Bold policy action remains necessary to ensure a more sustainable recovery, particularly in the euro area, where growth is uneven and remains slower than in other regions.”

The OECD projects that the euro area’s three largest economies – Germany, France and Italy – will grow by 0.4 per cent during the first quarter and by an additional 1 per cent in the second, but points to a renewed divergence between growth in Germany and the euro area economies.

The German economy is expected to grow by 2.3 per cent in the first quarter and by  2.6 per cent in the second. The French economy   is expected to see a 0.6 per cent contraction in the first quarter followed by a 0.5 per cent rebound in the second. In Italy, real GDP is expected to drop by 1.6 per cent in the first quarter and by an additional 1 per cent in the second.

Weak growth and low confidence are expected to com‌plicate efforts to bring down high unemployment rates across much of Europe.

“The employment situation continues to deteriorate in many countries, making it all the more urgent to implement the labour and product market reforms that can stimulate growth and create jobs,” Mr Padoan said.

Growth in the United States was held back by one-off factors in the fourth quarter of 2012, but the economy is expected to  see a rebound of 3.5 per cent in the first quarter of 2013 before returning to moderate growth of 2.0 per cent in the second.  Canada is set to grow by 1.1 per cent during the first quarter and 1.9 per cent during the second.

Growth in Japan  is projected to accelerate from previous low levels to a 3.2 per cent pace during the first quarter and 2.2 per cent in the second, while the United Kingdom is expected to grow by 0.5 percent during the first quarter and 1.4 percent in the second.

Monetary stimulus remains necessary but needs vary across countries. “In the United States, the commitment of the Federal Reserve to keep policy rates low until labour market outcomes improve substantially is well judged, but the need for further exceptional monetary measures is waning, while in Japan more aggressive policy action is required to escape deflation and achieve the Bank of Japan’s new 2% inflation target,” Mr Padoan said.

“In the euro area, there is still some scope to ease monetary policy further, given weak demand and inflation well below the ECB’s objective, while further action is needed to repair the transmission mechanism. ”