Zhè zhǒng zhèngcè zhùzhǎng le tóujīzhě de huódòng.
This kind of policy encouraged speculators' activity.
Tips
usage
投机者 is almost always negative in Chinese, closer to English 'profiteer' or 'opportunist' than to a neutral 'trader.' For neutral financial speculation use 投资者 (investor).
memory
投机 means 'speculate' or 'opportunistic' (literally 'throw at the chance'); 者 turns it into a person noun. 投机倒把 is the related crime of 'profiteering' from the Mao era.
