It has been said that there is no such thing as a sustainable strategic advantage do you agree? why or why not?

I do not agree

Explanation:

A reason to not agree would be because of how hard it is to keep a sustainable strategic advantage.Sustainable competitive advantages are required for a company to thrive in todays' global environment. Value investors search for companies that are bargains. In order to avoid purchasing a value trap one of the factors everyone searches for is sustainable competitive advantages.A company that has the ability to increase prices without losing market share is said to have pricing power. Companies that have pricing power are usually taking advantage of high barriers to entry or have earned the dominant position in their market.It takes a large investment in time and money to build a brand. It takes very little to destroy it. A good brand is invaluable because it causes customers to prefer the brand over competitors. Being the market leader and having a great corporate reputation can be part of a powerful brand and a competitive advantage

it id the first and last option

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.