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My first analysis actually happened before I build the platform. I was manually comparing prices of products the stores themselves offer in the lowest price segment. Things like grocer store brand milk or flour.

I compared 40 product pairs across the two biggest chains. And lo and behold: their prices matched exactly to the cent!

An NGO picked this up on Twitter and did the analysis for 600 product pairs. Same picture.

With my platform in place, I could do more advanced stuff.