What is good business idea to start that will earn more with less investment and must be progressive?

Question

Which business provide best opportunity either Communication, Service or Product.

Answer 1

Service related industry tends to weather a down turn better than production or even communications.

Of course this is further dependent on whether your idea is a part of a franchise or, as stated above, innovation.

Answer 2

It would have to be service industry but it also will depend on if your innovating or trying to expand an existing market