We had a dramatic weekend, as regulators saw bank customers rushing to access their money in Silicon Valley Bank (SVB) before it completely failed. As of this writing, SVB has failed, while the next bank to suffer the same fate this weekend was Signature Bank in New York. The next bank that regulators are closely watching is San Francisco-based First Republic Bank, which currently is in its last leg as JPMorgan Chase & Co. has stepped in to inject funds to help it keep afloat.  What is going on, and why are banks failing? In this article, we will explain the causes of these bank failures and bank runs and…