An example can be hot dogs and hot dog buns. If the price of one of them falls, it would lead to the product being cheaper which would increase sales, thus bringing the demand for the other one to be much higher.
It means progress through a persons determination. A determined person will advance and progress. Determination means never giving up and keep on trying.
I think it means you judge people without even allowing them to say anything.
Explanation:
Interest groups or pressure groups are composed of organizations or associations of people organized in a formal way, whose central objective is to influence the development of public policies for the benefit of their own interests and causes, through the use of lobbying.
The use of celebrity spokespersons is a common practice of gaining influence, which can be an effective practice if the personality and values of the celebrity in question are compatible with the policies they wish to gain influence from, as a celebrity has the advantage of having popular support for influence.