Average Revenue (AR) is equals to Marginal Revenue (MR) in Perfect competition (PC) not imperfect competition.
AR can be derived from the formula= Total revenue(TR) / Quantity.
Since TR = Price x Quantity, the formula now will be Price x Quantity/ Quantity and naturally, AR equals to Price.
Marginal Revenue can be measured by the formula= Change in total revenue/ Change in quantity (which is 1). Since the change in total revenue will be equals to the price of the product, MR in this case will be the Price of the product.
From here we can see that Price = MR = AR = Demand.
The British used the colonies to gather natural resources that they could then sell and/or craft into products that were sold.
The average four round fighter gets paid approximately $500. Six round fighters get approximately $750. Eight rounds fighters get $1,000-$1,500. As fighter's record improve and their noteriety increases they are able to negotiate pay. The world's elite boxers (ie. including the current 2009 crop of Floyd Mayweather, Oscar Dela Hoya, Ricky Hatton, Joe Calzaghe, Shane Mosely, Miguel Cotto and others) earn upwards of $1,000,000 to $20,000,000 per fight.
Advantages: Boost to local economy, cultural exchange, increased awareness and appreciation for the area. Disadvantages: Overcrowding, strain on infrastructure and resources, potential negative impact on local culture and environment.