Question: 9 . The Herfindahl index solves which problem with the N - Firm ratio ? a ) Inaccuracy when dealing with more than 4 firms

9 . The Herfindahl index solves which problem with the N - Firm ratio ? a ) Inaccuracy when dealing with more than 4 firms b ) Inability to measure concentration if market shares are split evenly ( ) Inability to measure concentration across borders d ) Invariance with changes in the size of the largest firms High variability when firm sizes are small
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