World stock markets perked up on Friday after a volatile week, Reuters reported. The pan-European STOXX 600 index rose 0.9% and was set for a 1.2% weekly rise, its best in a month. MSCI's broadest index of Asia-Pacific shares outside Japan slipped 0.7%, leaving it down 1.4% on the week. Japan's Nikkei was closed for a holiday, but off 1.7% for the week. The dollar was set to end the week with small gains after a turbulent few days, with the dollar index up 0.2% for the week, rising on Friday to stand at 92.917. The euro was a touch weaker at $1.1766, while sterling shed around a quarter of a percent to $1.37. Elsewhere, Brent crude oil was down 0.3% at $73.56 a barrel, after jumping 2.2% on Thursday, while U.S. crude fell 0.25% to $71.73 per barrel.