If everyone holds the tangency portfolio (perhaps also combining it with the risk-free asset), and if there are 10K stocks, each with 1M shares outstanding, and if the share price of Apple is $300 while the total value of the stock market is $1T (trillion), what will be the weight of Apple in the tangency portfolio?

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.