Hybrid forms of capital were meant to combine the cheapness of debt with the support that equity offers to banks in times of crisis.

ECONOMIST: Lloyds is first out of the gate with a new kind of capital

Even if the Prius is pushed aside by other forms of hybrid, it has done wonders for Toyota's reputation by making the firm seem green and technically cool.

ECONOMIST: Hybrid cars: Beyond the Prius | The

Bicycles come in many different forms: racing, mountain, touring, hybrid, track, utility, cruiser, fixed-wheel, dirt-jumper, porteur, BMX.

ECONOMIST: How Robert Penn found himself the perfect two-wheeler