The Financial Times recently reported that the Vietnam's dong is depreciating steadily as budget deficit and account imbalance grows with "chronic current account deficit that reached $8.4bn, or 9.3 per cent of gross domestic product, in 2008". Vietnamese government is facing the threat of not gathering enough money for its $80bn fiscal stimulus package as bonds and other commercial tools are falling flat. Investors are holding onto foreign currency due to the uncertainty of the dongs mostly credits to growing trade imbalances and insufficient foreign reserves.
This is a predictable test that most developing countries face at this stage of development, and is what economists considered as the "original sin," for which domestic currency is not used for foreign loans and on long term domestic loan contracts. Reliance on foreign currency for domestic exchange and long term loans make the country highly vulnerable to exchange shock and speculative attack which were the major drivers of the 97-98 Asian financial crisis. The Vietnamese government has little choice, and each option carries relative cost. Raising more reserves will temporary slow down growth, but this must to be done to boost investor's confidence on domestic market and to provide a stable macro economic framework for further development. Vietnamese government must find the outlet to do this- better now than later.