Objective. Estimate market impacts of "1+" dialing parity plus eliminating traditional LATA boundary.
Model. Measure shifts in market dominance between major competitors, by assuming price changes and estimating revenue impacts across range of demand elasticities, to reflect both changed rates and market shares. Also consider changes to revenues collected by U S WEST through carrier access charge (CAC).
Scope. Limited to residential toll calls carried by AT&T and U S WEST. Does not examine commercial toll customers.