We noticed that many tourist shops and airport accepts USD readily and prices were indicated in USD instead of Dong. We suspect that it is because of the unstable currency so people rather keep USD than Dong. One of our notes, a 20,000 Dong note, was found to be obsolete and cannot be used anymore. It looked like the 5,000 Dong so it was rather confusing. In Singapore, you can still use old notes, but not in Vietnam!
It's also on TIKI.VN :3
With that, I would like to thank Doanh and the faculty and students from HCMC University of Law for making this talk possible. Cảm ơn bạn!