Sure enough, social media is able to change one's perspective only from a writing. There are so many countries in my news that hoaxes are scattered and this has an impact on all fields not only in the economy and severely able to trigger propaganda.
But not everything from social media can aggravate the economy, social media also has a positive side. As is now everywhere ubiquitous in technology, so the development of ecomerce is increasing and the number of online transactions also increases. Many mid-level businesses rely on social media as a medium for their sales or promotions.
Social media aren't fully negative, they also bring a lot of positives to the economy, maybe they are even a net gain, but it doesn't mean that their negatives should be overlooked - the goal of economy should be optimization - reducing the costs and maximizing gains.
Social media allow the information to spread faster, they create new jobs for hundreds of thousands of people, they provide better methods for advertisers to reach their target audiences. Social media are used to coordinate protests, and protests are vital for protecting freedom, and free societies are always more prosperous than dictatorships.