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.
The major defining characteristic of a market economy is that investment decisions and the allocation of producer goods are mainly made by negotiation through markets.This is contrasted with a planned economy, where investment and production decisions are embodied in a plan of production.he term free-market economy is sometimes used synonymously with market economy, but it may also refer to laissez-faire or free-market anarchism. Market economies do not logically presuppose the existence of private property in the means of production.