azb arizona business october 2003 1 state university s monthly newsletter on the economy volume 50 number 10 center for research economic base study several activities contribute to 50th year of publication county was fi gure above average 9 percent less than in those areas with below per capita employment sectoral share method produces misleading results these low will indicate that area has a specialty some sectors even though activity is expected given population greater national location quotient indicates an excess this particular signifi cance when it associated basic or export one which most sales are purchasers from outside resulting money being imported into also can result local purchasing preferences many have both component and support example