How are the major political parties different?

Answer 1

They have some different views. Republicans generally want to go with low tax and less government. Democrats will go with higher taxes and more government programs. There are also other details such as contraceptives, weapon control, etc. I wrote this as an overview for the USA in recent times. New parties emerge over time and views can change in each party. In the past, Republican and Democratic views used to be almost completely opposite from today's sense.

Answer 2

differences is stated in party platforms and reflected in campaigning it was in economic book

Answer 3

There are many differences between the political parties on paper. However, in practice there are few. The differences are laid out and can be read in each parties Articles.