If Government and Bitcoin will combined economy will increase. If government support and protect bitcoin then banks will accepting bitcoin. And bitcoin is going to education too.
But if all that happen I didn't know if economy will increase. Who will work to government if bitcoin has higher value than country money. Maybe government will against bitcoin someday.
Yes I'll also agree with that, bitcoin is a decentralised currency but the currency circulated by the governament is a centralised money, so there is a considerable difference between both the currencies. If Government and the bitcoin ties up then the economy undoubtedly increases.