Theresa Lee manufactures a line of folding chairs that are colourful and practical, but as light as a wrapped umbrella.

[answerhappygod]

Theresa Lee manufactures a line of folding chairs that are
colourful and practical, but as light as a wrapped umbrella. In the
summer, she sells these chairs in a local craft market, but her
small factory can make thousands more than she currently sells.
However, customers are not willing to pay much more for the chairs
than they would for an umbrella. Therefore, Theresa cannot afford
expensive measures like a sales force or national advertising.
Advise her on a technology that might help her increase sales.