What is the fundamental difference in the risk-reward profile between using a quantity discount versus free shipping to incentivize sales on Temu?

The fundamental difference lies in how each impacts profit margins and order value. A quantity discount ('Buy 2, get 10% off') increases order value but reduces the profit margin per item, aiming to sell more units overall. Free shipping, on the other hand, doesn't directly increase order value (unless tied to a minimum purchase) but reduces the custome....