Developments which influence prices occur randomly and are unknowable in advance.

The government influences prices through the large state-owned sector.

Banks wish to heavily influence prices in all sectors.

According to traders, there was little overseas news to influence domestic prices.

The raw material cost of the commodity is only one of many factors that influence their final costs and prices.

"Perfect" competition is a market where producers are plentiful and none can influence prices.

Under realism, states possess a high degree of discretionary power to influence many variables and prices in the economy.

Fluctuating exchange rates also influenced prices, the report said.

Moving forward with energy production at home can influence prices today by building in expectations about future outputs.

These companies now control enough of Florida's processing industry to influence prices for bulk juice from concentrate.