Friday reads worth your time:

• Corporate profit margins hitting record levels — what's driving it and how sustainable is it really?

• How the insider media game actually works — the incentives behind what gets published and promoted

• Plus some sharp observations on NYC market culture

Good curation from Abnormal Returns as usual. The profit margin piece is particularly relevant right now — we're at levels that historically don't persist forever, but the composition of the market has changed dramatically. Worth understanding both the structural shifts and the cyclical risks.

Always valuable to understand the media incentive structure too. Helps you filter signal from noise when everyone's got a platform and an agenda.