Nikkei drops 1 percent after U.S. jobs

By Masayuki Kitano

TOKYO (Reuters) - Japan's Nikkei stock average fell 1 percent on Friday after bleak U.S. jobs data revived caution about the outlook for the global economy, while retail stocks tumbled after Seven & I Holdings reported a drop in quarterly profit.

Shares of oil and gas field developer Inpex and other oil-related shares dropped after crude oil prices fell nearly 4 percent on Thursday.

Drugmaker Eisai Co Ltd fell after Nikko Citigroup downgraded the stock, citing the fact that the company's Aricept Alzheimer's drug will not receive approval from the U.S. Food and Drug Administration for pediatric use and will not get a six-month extension from the patent expiry date.

Tokyo shares fell after U.S. stocks slid the previous day but trade was thin, with 942 million shares traded on the Tokyo exchange's first section compared with last week's morning average of 1 billion.

The Nikkei's fall was limited compared with Thursday's 2.9 percent drop in the Standard & Poor's 500 index, which came in light trade ahead of a long weekend in the United States.

The holiday-shortened week likely helped to exaggerated the drop in U.S. shares and that may be a factor behind the divergence, said Nagayuki Yamagishi, investment strategist at Mitsubishi UFJ Securities.

"Since they had been rising recently, you would usually expect buying to emerge on dips. But with the weekend looming, people may have decided to wait to see what happens in Japan and Europe," Yamagishi said, referring to U.S. shares.

"If people look at the moves in Tokyo shares and were to take the view that they held pretty firm, the moves might reverse at the start of next week," he added.