The smallest coin in common use in Thailand is the baht, worth about 3 cents. There are also half-baht and quarter-baht coins but they’re almost never seen except at a few stores (e.g. 7-Eleven) which have a “…0.50” at the end of some prices. Thai post offices sell envelopes for 1.5 baht, but you’ll be cheated if you buy an odd number of envelopes: they don’t stock the half-baht coins and all round-offs are done against the customer. (The 7-Elevens often run out of the half-baht coins; they will always shortchange you a half-baht in those cases.)
Thailand is a poor country; the half-baht represents about 15 U.S. cents in wage equivalence, yet I’ve never seen a Thai mention this “cheating.”
The ordinary markets quote most prices in multiples of 5 baht, and will often round to avoid single-baht coins — If you’re quoted “apples 7 baht each”, you can bet they’re sold three for 20 baht. (An exception is shirts, for which the quotes are often 99 baht, 199 baht or 299 baht. The vendor will take care to give you your 1 baht change.)
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[sarcasm] You’re not from around here, are you? The U.S.A. is exceptional in so many ways; we have large ethnic populations and bear the world’s burdens. The socialist solutions you find in Somalia, North Korea and Norway don’t work for us.
See? While it’s true that the rounding occurs after multiple items are totaled up, you can bet that legions of programmers will arrange to make the total end in 3 cents so they can round up. Instead of averaging zero through the give and take of rounding, you will consistently lose 2 cents on every cash transaction, whether it’s for breath mints or for a new Mercedes-Benz. (Yes, I know many write a check for their Mercedes, but the dealer will be hounding you for cash once they have the opportunity to cheat you out of an extra two cents.)
At McDonald’s they will carefully calibrate the pice of a BigMac and Fries to total $4.43, not $4.42 — they want to round up. If you order for two (with the normal total $8.86) the clerk will hound you to buy the extra catsup for 22 cents — it will actually be 25 cents when the rounding is factored in!
The average American family exchanges cash with a cashier 2.6 times per day. If two cents are stolen each time, this adds up to over 5 cents per day, or $18 over the course of a year. Do you think the owner will share this windfall with his employees, or spend it offering better service? No way! In fact, you can figure the government will find a way to get its grubby hands on it.
Welcome to America, wolfpup. If you don’t like it, go back to your socialist dreamland where pampered welfare brats don’t care about their pennies. [/sarcasm]