finance conceptual question

hi everyone,

I have this question:

Does the choice of depreciation method (straight line vs. MACRS) affect the value of the profitability index for an investment project? I know that depreciation can affect cash flows by serving as a tax shield, so it seems like it should affect the PI - however, i'm not sure if choosing straight line vs. MACRS would have any impact on the PI.

Let me know what you think.