Economics and Chinese

Well, you could attend HKU or HKUST or some such as an international student. Their list prices are considerably lower than those of many US universities. You may want to investigate if their academic offerings are suitable (both appear to have a more pre-professional “business” leaning). Note, however, that if you want to practice Chinese language skills in the local community, Hong Kong is heavily Cantonese (as opposed to Mandarin) speaking.