The demand side of any marketplace is dictated by the tastes and incomes of the users of final products.

任何市场的需求方面都取决于最终产品的使用者的偏好和收入。

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Once economic signaling starts to crank up on the demand side of the marketplace, the supply side will have to start regarding customers as complex and fully empowered actors.

WSJ: The Customer as a God: The Future of Shopping

But the Internet is young, and most development work has been done to improve the supply side of the marketplace.

WSJ: The Customer as a God: The Future of Shopping

Current work is focused on re-laying worn out areas, particularly around the most heavily used southern side of the marketplace.

BBC: Thirsk Market Place cobblestones re-laid