For example, expect the cost of a new roof with tile to be more than wood shingles. However, heavier and longer-lasting shingles of a low cost material can cost as much or more than the low-end of a more expensive roofing material, such as tile.he cost of a new roof with asphalt is among the lowest of any popular material and they carry a moderate lifespan. Advantages: 1  Average 20+ year lifespan. 2  Low cost.
Characteristics of Security Indexes. 1. A price weighted series is the average of the stocks' prices in the series. It is calculated by adding together each stock price and dividing the total by the number of stocks in the series.
Circular Flow In a market economy, there are two markets: The factor market, and the product market. In the factor market, the people, who own the factors of production, sell their services to the companies that produce products. In exchange, the companies give the workers wages and, rent, and interest. In the factor market, the people are the sellers, and the companies are the buyers.