economics Practical Magic

A study of 11,000 sales shows that most small businesses fail because they mess up internally, not because people don't want to buy their stuff.

March 25, 2026

Original Paper

The Invisible Cost Of "No" How Recording Customer Interactions That Do Not Result In Sales Reveals Silent Losses And Improves Decision Making In Small Businesses

Tuilla Barros

SSRN · 6190718

The Takeaway

Business owners typically assume a 'no' means the customer wasn't interested. This longitudinal analysis reveals that the majority of lost sales are actually caused by self-inflicted wounds like bad timing or simple inventory misalignments that were completely within the owner's control.

From the abstract

This article examines how small businesses can transform customer interactions that do not result in sales into practical managerial intelligence through the systematic recording of initial customer contact. The study is based on 11,677 real records collected between 2023 and 2024, comprising 4,671 records in 2023 and 7,006 records in 2024, generated from an operational spreadsheet automatically populated by Google Forms completed daily during customer service interactions. Longitudinal analysis