Resources/models on Price Elasticity?

Tl;dr: Recommend models or resources to find out an item's true price sensitivity.

Hey guys,

My company sells products to distributors and directly to retailers like Wal-Mart.

We're a company whose brands have experienced growth every week/year since we took them on.

Management has repeatedly shown interest in figuring out how sensitive consumers/distributors are to our prices, and I've tried running a simple Pearson Correlation in Excel, but I'm getting insignificant values every time, and sometimes even positive correlation between …

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