Commenting on the potential impact of halving on BTC price, Garrick Hileman, the research head at Blockchain said that:
Cryptocurrency markets are often very event-driven, and as we get closer to the next halving bitcoin’s price will receive a boost from those anticipating the forthcoming reduction in new supply. In the months leading up to the last two halving events, we saw bitcoin’s price steadily trend upward, and then power higher following the reward halving.
Hileman also went on to say that a significant change in crypto mining hashrate due to the halving was unlikely. He went on further to say:
Miners have historically shown a willingness to maintain or increase computing power through halving events because they expect future bitcoin price increases to offset the reduced block reward. bitcoinist.com