KERALA RISING · FROM EXPORTING PEOPLE TO EXPORTING IDEAS that builds the Reward Partner base and the patron relationships the later programs inherit at no additional acquisition cost. WORKED EXAMPLE: THE MARGINAL COST OF THE SECOND CORRIDOR Consider what it costs to add the second cleanliness corridor once the first is running. The institution exists; the stack is built; the classifier is trained on Suchitwa’s categories; the points ledger, corpus, and Trust are all live. Adding a corridor therefore means signing its Reward Partners, briefing its creators, activating its leaderboard units, and opening its patron channel, coordination work, not construction. So the second corridor costs a small fraction of the first, and its inference adds a few rupees a month to a bill already measured in rupees. This is the platform property stated as money: the first corridor carries the build; every corridor after it carries only its own thin marginal cost, while contributing its own Reward Partner revenue and patron capital. Multiply that across a state and the unit economics improve as the program grows, which is the opposite of how most government programmes behave. 122