Corporate concentration has breached the stratosphere, as have corporate profits. An ever-expanding constellation of industries are now monopolies (where sellers have excessive power over buyers) or monopsonies (where buyers hold the whip hand over sellers) - or both. Scholar Rebecca Giblin and writer and activist Cory Doctorow argue we're in a new era of 'chokepoint capitalism', with exploitative businesses creating insurmountable barriers to competition that enable them to capture value that should rightfully go to others.