When facing a problem, many people may try to find an alternative. After...

A person's salary would decide what is luxurious and what is necessaryfo...

Price is decided by its demand. When we go to work, who decides our sala...

For some goods, theirprices change as conditions change. For example, wh...

How to make more revenue for a company or more profits for a person? I t...

Many people can't be an expert on some field because it tasks a lot to i...

It's easy to find what we need for a meal but difficult to find what we ...

With time going one, some old rules get into conflicts with new ones. Un...