Hi.... So as to finance, accounting, operations, etc. being considered as business specializations, hence letting the international students get employed easily as a rule of thumb (including engineering too), is Economics actually valuable for international Asian students (who are only proficient in English besides their mother tongue) to get a job easily in foreign nations (both English-speaking countries and non-English-speaking countries like Japan)?

*Not into academia or government-related roles* because I have seen that many economics graduates are into those fields mostly

Search open jobs on LinkedIn. There isn't an economics department in many businesses, and most economists seem to be either in non-profit or public sector organizations, or in consultancies that serve them (which generally have tight margins because of how demanding public sector clients are, and how limited their budgets are. However, economics is a good route into financial analysis.