>Having worked in those fields for years, I've heard it (and read it) used this way often in the banking and insurance industries. :o)

The term we use is "privredna grana", ie. "economy branch", but those branches don't go into so much detail. "Hospitality" is not really divided into hotels, bars, pubs, catering, shipchandlers, takeout, express restaurants and what have you. Likewise, "finances" is maybe split into "bankarstvo" (bankship, or rather bankhood) and "osiguranje" (insurance), without ever mentioning various kinds of insurance as separate branches.

Maybe it's in the language. While we build the words for these branches traditionally, adding -stvo (-hood, -ness) or -ije (-ies) to words, usually the tradesmen's titles - povrtarstvo (vegetable growing), stočarstvo (cattle growing; stoka-cattle), bankarstvo, hotelijerstvo... it somehow doesn't help when you get into the nitty gritty details and there's no single word to which to slap the suffix. Can't make a single word of "car insurance" or "real estate middleperson" no matter what.

At least we have "privreda" (economy), from "vredeti" (to have value) and "privrediti" (to add value once, to contribute value once), privređivati (same, but keep doing that continuously or regularly), "privrednik" (businessperson), "poljoprivrednik" (agricultural manufacturer, i.e. field businessperson :).