Credit Suisse economists said that better online services meant customers were able to compare prices more easily, increasing pressure on traditional sellers.

Simple products such as flights and hotels are often booked over the web, while tours and customised products are still the preserve of the agencies.

But the bank's specialists warned that the internet was expected to gain more market share, and that traditional sellers would have to concentrate on personalised advice and matching products to customer needs.

They said this meant consumers could expect better quality of service in the future.

Get the full story at swissinfo