anti-speculation       
adjective (also antispeculation) uk/ˌæn.tiˌspek.jəˈleɪ.ʃən/ us/ˌæn.taɪˌspek.jəˈleɪ.ʃən/
 反投机
intended to prevent speculation (= buying and selling in the hope that the value of what you buy will increase and can be sold at a profit)
  For the property market, some anti-speculation measures have been suspended. 楼市方面,部分反炒楼措施已经搁置。 
 Efforts to pass an anti-speculation bill continue. 通过反投机法案的努力仍在继续。 
 Synonym: anti-speculative
 - More examples
 - They will convene a work group to explore ways to strengthen current anti-speculation law.
 - The IMF has recommended the country implement anti-speculation taxes.
 - A well-examined set of anti-speculation policies could serve to de-commodify housing.