Yuan-denominated assets will be a proper choice for investors as they will generate long term positive yield, said a senior economist with China's central bank on Saturday.

"Buying into yuan assets might be a proper investment choice for the future with controllable risks and relatively high yields," said Yao Yudong, head of the Research Institute of Finance and Banking under the People's Bank of China, at a panel discussion at China Wealth Forum held in Qingdao, Shandong province.

Yao said his conclusion was made based on the fact that yuan will be relatively firm against a basket of currencies in the long run, citing the country's medium to high economic growth and efforts to boost supply side reform.

By contrast, according to Yao, there might be more uncertainties in emerging new economies and in developed countries such as Japan and some European countries, where interest rates have been cut below zero.

"The central bank has removed the barriers for foreign investors. Yuan assets will become valuable for foreign investors as they diversify their currency exposure," Yu added.