North Korean leader Kim Jong Un's promise to build "socialist economic construction" in his nuclear-armed but impoverished and isolated country could herald more Chinese-style economic reforms, according to analysts -- but he will never explicitly say so.

The International Monetary Fund will systematically address corruption and its impact on economic growth with all its member countries under new guidelines launched on Sunday.

Saudi Energy Minister Khaled al-Faleh said on Friday the global market has the capacity to absorb higher oil prices after crude made a strong recovery.

Russia said there was a "very solid foundation" for extending cooperation between OPEC and non-OPEC countries at a meeting Friday of oil producers in Saudi Arabia.

Asian markets mostly fell Friday as investors struggled to maintain the previous day's positive momentum following losses on Wall Street, with technology firms tracking a sharp fall in Apple.

The spread of mobile phones to all corners of the world offers the opportunity to deliver banking services to poor and rural areas, improving lives, the World Bank says in a report Thursday.

Access to a bank account can especially help women, who are more likely to save and to spend on healthcare and education, World Bank economist Leora Klapper told AFP.

Governments must take care, even when there are disagreements, to avoid harming trade and investment which have been key drivers of the global economic recovery, IMF chief Christine Lagarde said Thursday.

Oil surged Thursday close to 3.5-year peaks on simmering Mideast tensions and keen U.S. demand, while London stocks rose with drugmaker Shire boosted by a takeover move.

World oil prices extended Wednesday's gains on the back of data showing a drop in U.S. stockpiles -- indicating improved demand -- and expectations that a Russia-OPEC output cap deal will be kept in place.

Saudi Arabia hopes to bring Russia into the fold of an expanded club of global oil giants to sustain a stable market, leaving OPEC's role in question, analysts say.

Europe's major stock markets rose Wednesday after solid gains elsewhere, with London buoyed by the weak pound as UK inflation dived to a one-year low.