Why did the union banks tend to have more money than the confederate banks?

Union banks tended to have more money than Confederate banks primarily due to the North's more robust industrial economy and larger population, which facilitated greater tax revenues and financial resources. Additionally, the Union had a more established banking system, access to international markets, and the ability to issue paper currency (Greenbacks) backed by government bonds. In contrast, Confederate banks struggled with limited resources, inflation, and a lack of recognition from foreign nations, leading to financial instability.