Bitpay like company which process merchant payments, locks invoice at particular price with some time window to compensate volatility. So, whenever Bitpay successfully process payments means there is someone liquidating Bitcoin. If merchants acceptance is drastically increased then how will it effect price on exchange?
Will it move towards higher end or lower end? If cycle is perfect then, with every sell on exchange from payment process there is buyer out there. And price will remain constant. What if this is not true?
Various scenarios?
Some processors like coinbase allow users to 'buy back' bitcoin, after spending it on a transaction. If people don't want to miss out on increasing bitcoin prices, they might do this. This would nullify the impact of merchants liquidating bitcoin.