Describe why it is challenging to properly categorize the various e-commerce business models. What difficulties is Amazon encountering with their plan to expand into new and emerging markets? What is the foundational business model enacted by Amazon? What modifications to this model has Amazon made since the business was created?

You need to give the options.

The advantage of administering personality tests on employees is that it will allow the employer to know the mindset and personality of the employee. this will allow the employer to at least have an idea as to how the employee works and how his attitude in the workplace. the disadvantage is that it may make the employee a little anxious as to whether he would meet the personality requirements of the employer and whether he would be able to retain the job or not.