Geometric Mean Index

The statistical Index

$$P_G\equiv \left[{\prod \left({p_n\over p_0}\right)^{v_0}}\right]^{1/\Sigma v_0},$$

where $p_n$ is the price per unit in period $n$, $q_n$ is the quantity produced in period $n$, and $v_n\equiv p_nq_n$ the value of the $n$ units.

See also Index

References

Kenney, J. F. and Keeping, E. S. Mathematics of Statistics, Pt. 1, 3rd ed. Princeton, NJ: Van Nostrand, p. 69, 1962.