I have started doing the bank's liquidity stress testing. We use a model from FiCast, and it contains a line for the Basel III Liquidity Coverage Ratio. I have to define a target ratio for this. I've done some reading about this, and I'm not sure if I have a mental block or what is going on, but I just don't get it. Can anyone out there explain this ratio in very simple English for me and help me understand what our target ratio should be?