Case of the week: Banking on the bonus doesn't pay

This week's case of the week, provided by Addleshaw Goddard, covers discretionary bonuses.

Ridgway v JP Morgan Chase Bank National Association, High Court

What is the extent of an employer's discretion when making bonus decisions? We already know that discretion is not completely unfettered, and that employers must not act in a way that is irrational or perverse when making bonus decisions.