The Decision Lab

Why You Choose the Way You Choose

You're not a spreadsheet. Meet the hidden forces (framing, loss aversion, anchoring) that shape your money decisions.

Losses loom about twice as large as equivalent gains. Here are seven ordinary places that asymmetry quietly shapes what you do.

You came for one thing and left with three, because crossing a free-shipping threshold feels like saving. Here is how that trick works on your brain.

You know $9.99 is basically $10. Your brain still reads it as nine-something. Here is why left-digit bias beats your better judgment.

The number might be real. The urge it creates is definitely real. Here is how scarcity and urgency hijack the buying decision.

Small, medium, large. Most people pick medium, and it is not an accident. Here is the compromise effect and how the decoy does the work.

Thirty days free, then a charge you barely notice. Here is how defaults, inertia, and a little friction turn a trial into a subscription.

That $80 steak nobody orders may still be doing work. Anchoring and reference points change how the rest of the menu feels, though not every pricey item is a decoy.