business world; industrial world
Refers to the sphere of business and industry, including companies, executives, and economic activity.
He achieved success in the business world.
I always keep an eye on trends in the business world.
経済界 refers to the economic world or financial circles, often overlapping with 事業界 but with a stronger focus on macroeconomics and finance.
Compound of 事業 (business, enterprise) and 界 (world, sphere).