Giro Games 
The Industry That Measures Itself: Japan’s DK-SIS Hall Data Network
Japanese pachinko halls feed their machine-level performance data into a shared national benchmarking system. Nothing comparable exists in western slot markets.
industry data - Giro Games
Norway Switched Off Every Slot Machine in the Country. Then Measured What Happened
In 2007 Norway removed all privately operated slot machines nationwide, then reintroduced state terminals with mandatory player cards. Researchers got a natural experiment almost…