premise: But he added: "I don't believe that the imposition of similar measures by Australia against new investment in Burma would make any significant difference to the situation."
  Meanwhile, a leading Burmese dissident group called on the international community to launch a coordinated effort to follow the US initiative.
  The All Burma Students Democratic Front (ABSDF) said in a statement that a multilateral approach with regard to economic sanctions was needed to force Burma's ruling junta into bringing about political reform.
  Aung San Suu Kyi has repeatedly called for international sanctions on Burma, a stance which has been backed by most Burmese dissident groups.
  The United States, thanks largely to the involvement of Unocal Corp. in a 1.2 billion dollar gas pipeline project, is currently the fourth largest investor in Burma in terms of approved investments.
   What might lead to political reform in Burma?
hypothesis: international sanctions