The Future-Tense Trick: A single policy change at a mid-sized manufacturing firm in 1998 tripled employee savings rates within four years — from 3.5 percent of salary to 13.6 percent — without a single dollar of additional pay, employer match, or financial education. The mechanism is so cheap that the policy could be implemented in … Read more
The Paternalism Spectrum: Default enrollment into a 401(k) plan saves the average employee approximately $280,000 over a working life compared with opt-in defaults — while preserving the employee’s right to opt out at any moment with a single click. The same design philosophy applied to organ donation tripled organ availability in countries that adopted opt-out … Read more
The Inertia Premium: When patients with chronic conditions are offered a switch to a treatment that is mathematically better — lower cost, fewer side effects, more effective — roughly 60 to 70 percent refuse the switch. The same patients, asked to evaluate the new treatment as if naive (no current treatment exists), choose it overwhelmingly. … Read more
The Ownership Premium: When experimenters at Cornell randomly gave half of a roomful of students a coffee mug and asked them to set a selling price, while asking the other half to set a buying price for the same mug, the median seller demanded approximately $5.78 per mug — while the median buyer would pay … Read more
The Asymmetric Comparison: When a restaurant menu adds a third entrée priced at $52 alongside a $48 option and a $32 option, sales of the $48 entrée — the originally-targeted item — rise by an average of 33 percent. The $52 entrée is rarely ordered; it does not need to be. Its only function is … Read more
The Streak Premium: The smartphone apps that succeed in producing durable behaviour change — Duolingo, Strava, Headspace, Anki — all use the same psychological architecture: small, immediately rewarded actions that compound through visible streaks. The successful streak app converts users at roughly 3 to 5 times the rate of equivalent apps without streak mechanics, and … Read more
The Stamp That Was Already Filled In: Loyalty programmes that issue cards with the first two slots pre-stamped produce roughly 82 percent program completion rates, while loyalty programmes that issue equivalent blank cards (requiring the same total stamps to complete) produce roughly 19 percent completion. The pre-stamped cards have not given the customer any actual … Read more
The 24-Hour Filter: Adults who impose a mandatory 24-hour delay between identifying a non-essential purchase and completing it abandon the purchase approximately 56 percent of the time. The objects, services, and subscriptions the consumer would have bought immediately fail the cold-self review when the decision is paused. The cumulative annual savings from a consistent 24-hour-delay … Read more
The Bureaucracy Tax: The American adult population spends an estimated 11.4 billion hours per year filling out government and private-sector forms — a quantity of human attention so vast that it exceeds, in aggregate, the total annual labour of several mid-sized national economies. A meaningful fraction of this time is not necessary for the function … Read more
The Most Profitable Default in the Modern Economy: The single feature responsible for more subscription revenue than any advertising campaign, any product improvement, or any pricing strategy is a small architectural choice present in nearly every consumer software service: the free trial that converts to paid subscription unless the user takes positive action to cancel. … Read more