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.
Brief explanations are given for these characteristics of the market system: private property, freedom of enterprise and choice, the role of self-interest, competition, markets and prices, the reliance on technology and capital goods, specialization, use of money, and the active, but limited role of government.. Private property, coupled with the freedom to negotiate binding legal contracts, enables individuals and businesses to obtain, control, use, and dispose of this property. 2. Private property rights encourage investment, innovation, exchange of assets, maintenance of property, and economic growth.