Agood with many close substitutes is likely to have relatively demand, since consumers can easily choose to purchase one of the close substitutes if the price of the good rises.

Elastic

Explanation: When a good has close substitutes a small change in the price of the good will lead to a large change in its demand as consumers will switch to the less costly substitute good. Therefore,  good with many close substitutes is likely to have relatively elastic demand, since consumers can easily choose to purchase one of the close substitutes if the price of the good rises.

step 1: create a plan

step 2: inventory facility equipment/assets

step 3: create preventive maintenance procedures

step 4: create preventive maintenance schedules

step 5: train your maintenanceteam

step 6: analyze – adjust - improve

or

step 1 – pm procedure design: doing the effective things

step 2 – pm procedure scheduling: efficient use of people and resources

step 3 – pm lubrication engineering

step 4 – pm training: back on the chain gang

step 5 – pm program management plan

step 6 – communicate, communicate, communicate

the answer would be voluntary exchange -

"the act of buyers and sellers freely and willingly engaging in market transactions. moreover, transactions are made in such a way that both the buyer and the seller are better off after the exchange than before it occurred."

hope this : )

-shy