Why is expatriate compensation complicated? What are some of the universal best practices regarding employee compensation?

What will be an ideal response?

Designing and maintaining an appropriate compensation package is more complex than it would seem because of the need to consider and reconcile parent- and host-country financial, legal, and customary practices. The problem is that although little variation in typical executive salaries at the level of base compensation exists around the world, a wide variation in net spendable income is often present. Universal best practices include the idea that there should be a reduced emphasis on seniority and that benefits should comprise an important part of a compensation package.