Without doubt, services have grown dramatically in recent years. As the share of services is growing rapidly in the world economy, one thing is clear: Services are becoming more and more important. Today, they make up already more than 65% of the gross world product. In developed countries, the service sector contributes more to economic growth than any other sector. However, all services have certain characteristics in common. Discuss extensively the four unique characteristics of services that make them unique and different from goods and four strategies each to overcome these characteristics?