Tesla, the electric carmaker headed by billionaire Elon Musk, has started to allow people to buy brand merchandise using Dogecoin, a cryptocurrency initially started as a joke. The move, which sent Dogecoin prices more than 14% higher at one point, comes a month after Mr Musk said Tesla would test out the digital token as a payment option. Dogecoin, which was started in 2013 as a parody of the cryptocurrency craze, was once obscure. But its value climbed about 4,000% last year, driven in part by promotion from Mr Musk. What does it mean for Crypto Markets ?

