Should lunch breaks be mandatory?

People are always being told that lunch is under threat from workaholism, but would a compulsory long break actually mean we achieved more. Former Wall Street trader Frank Partnoy thinks so.

Most of us rush through lunch. We might have a sandwich at our desk or grab a quick salad with a colleague. Or perhaps we skip lunch altogether. After all, breakfast is widely regarded as the most important meal of the day. Dinner is often the most enjoyable. Lunch gets short shrift.
Lunch also has suffered from the crush of technology. Email, social media, and 24-hour news all eat away at lunch. Even when we have lunch alone, we rarely spend the whole time quietly reading or thinking. We are more connected to our hand-held electronic devices than our own thoughts.
Given the fast pace of modern life, it is worth considering whether employers should require a substantial lunch break.
Or, if a mandatory lunch seems too draconian, perhaps employers could give workers incentives to take time off for lunch, just as in some countries they subsidise or reward regular visits to the gym or a physician. Would we benefit from a long intraday pause?

One obvious reason to do lunch is to slow down and gain some perspective. If we burrow into work, and don't come up for air during the day, we will have a hard time thinking strategically or putting our daily tasks into broader context.

By taking a lunch break, we can think outside the box. In the interviews I conducted for my book, I was struck by how many senior leaders stressed the importance of strategic "downtime" - lunch or some other block of an hour or more per day - to break up their thinking and spur them to be more strategic.
Where we have lunch can be almost as important as whether we have it. If we sit down at a real restaurant and take time to chat leisurely with colleagues, we are more likely to slow down than if we dash to a fast food chain. In fact, a fast food lunch can be more harmful than no lunch at all.
Although a mandatory lunch could generate substantial benefits, we are unlikely to do it on our own. When we have the choice, many of us see the salient costs of a leisurely lunch, but not the benefits.
To encourage people to enjoy the benefits of lunch, we need to change the lunch default rule with the kind of "libertarian paternalism" advocated by Richard Thaler and Cass Sunstein in their book Nudge. Just as they would impose a default rule requiring people to save money, while permitting them to "opt out," employers could do the same for lunch. People could skip lunch if they wanted, but they would have to take some action - fill out a form, or log on to a website.
And it wouldn't necessarily create an unproductive 90-minute block. Employers could ensure someone is on staff at all times by staggering lunch periods (11:30-13:00; 1200-13:30 and 12:30-14:00), like schools do.
Finally, lunch breaks could create new opportunities for part-time work by institutionalising two half-time shifts - one in the morning and one in the afternoon. Parents with newborns might choose to work just one of those times. It might become easier and more acceptable to become a halftime employee if there were a clean, natural split between morning and afternoon.
If our leaders want to improve economic growth and productivity, they could start by experimenting with a policy tool that is simpler than fiscal spending and less risky than monetary stimulus. How about lunch?