I added a video on Building an Insurance Company in the Banking and Finance DLC: https://youtu.be/1N_zhymsrQg?feature=shared
As always, feedback and questions are very welcome!

Script file: Curious to read your feedback! Thank you!
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Dear Capitalism Lab community
Hope you are all fine and safe
I just completed my video on Banking and Finance DLC https://www.youtube.com/watch?v=QtMNfvqynys and want to share my script (because it was requested in a comment and I don't have a website yet). Feedback and questions are very welcome!

Script file: How do you manage the bank capital requirement especially in the beginning in the bank growth phase?
The higher the growth, the more equity capital is needed. Obviously, the initial capital is limited and the bank income is not high enough in the beginning to provide the equity capital for such high growth. From what I know so far, there are two options: a) Earning more equity capital from another industry or b) limit growth. Limiting corporate deposits is probably the best approach to limit growth as corporations on average have higher interest rates with long-term deposits (AI does that). Another options is a hard stop which can be set in the bank HQ (Overview - Stop Bank Deposits and Loans in the bottom right corner of the overlay).
What is your approach to maximize the Net Interest Margin?
In Economic State of Expension this seems to work well: Accept loans from all credit ratings (higher loan interest rate but also higher rate of defaults) and limit Corporate Deposits (lower deposit interest expense). Is it really sustainable in other Economic States and is it not better to grow faster and follow the big bank strategy in longterm?