What methodologies are effective for market sizing interviews?

Clarifying the different methodologies used for market sizing is crucial for showcasing your analytical thought process in interviews. I’ve often found the top-down and bottom-up approaches to be the most effective. The top-down gives a high-level view while bottom-up allows for granular insights that ground your assumptions. I’d love to hear what methodologies others have successfully applied in practice! What works for you?

i find the bottom-up approach easier to understand! starting small helps me build up to the bigger picture!

Both methodologies offer unique advantages, but I often prefer the bottom-up approach for its detailed granularity. This depth allows for a more robust defense of my assumptions. Discussing these strategies with peers can yield new perspectives. Have you had success using either approach?

bottom-up, top-down, whatever. just pick one and stick with it; stressing over the perfect method is a waste of time. just get good at talking through your thought process.