Why Do Some Bakeries Run Out of Popular Bread Before Other Varieties?
Popularity creates demand, but forecasting creates availability.
Many customers assume bakeries should never run out of their most popular products. In practice, those products are often the hardest to manage.
The hidden mechanism is forecasting volatility. A bread that usually sells well attracts more customers, but small changes in demand can create large inventory gaps. Producing too little causes shortages. Producing too much creates waste.
Imagine two breads. One sells steadily every day. Another is extremely popular but experiences unpredictable spikes. The second bread may actually be more difficult to stock correctly despite higher demand.
A second-order effect appears when customers learn a bread often sells out. Some begin arriving earlier, increasing demand concentration and making shortages even more likely.
People often think products disappear because bakeries underestimate demand. Sometimes demand becomes harder to predict precisely because everyone wants the same thing.
