How to answer hard interview question

We are now living in a world where changing jobs is considered a natural thing to do. Only a generation ago, my father being a prime example, it was common for people to clock up 20, 30, 40+ years of service with the one organisation. Most of us cannot conceive of remaining with the one employer for the vast majority of our working lives. It is a combination of the increase in individual aspirations and the nature of commerce which has brought about this change.

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