Dell said it would use lower prices to attract customers.

Land values can be estimated by using recent prices for similar plots of land sold in the area.

But growth investors prefer to use prices relative to future earnings as a gauge.

Markets can't work unless individuals can calculate costs using prices that reflect scarcity.

This means future price movements cannot be predicted by using past prices.

Those contracts, traded in Chicago, are not calculated using stale prices.

Another example would be using quoted prices for similar assets or liabilities in active markets.

These are average trends calculated by using prices sold in the past few years.

Variations are valued by the superintendent using rates or prices in the contract.

Maybe Microsoft would no longer be able to use prices as punishment.