There are platforms controlled by the provider (sell side) or by the consumer (buy side), as well as those controlled by market organizations which in turn are provided and controlled by a neutral third-party authority.

you must take such Things, as are Greene all Winter; Holly; Ivy; Bayes; Juniper; Cipresse Trees; Eugh; […]

[O]nly a tiny portion of disagreements—the proverbial tip of the iceberg—ever ends up in court. Most agreements drop out along the way, either because they are settled or because the allegedly wronged party decides that the potential costs of proceeding outweigh the potential benefits

From behind the narrow slits in the walls of Castellar, crossbowmen and archers took aim at the juddering cat as it came closer.