Why do people generally move from one country to another?

Why do people generally move from one country to another? Why has there been slow movement of people between countries in the past few decades? Explain.

Due to following reasons people move from one country to another
(i) People generally move from one country to another in . search of better living standard.
(ii) They move from one country to another in search of better jobs.
(iii) They also move for the purpose of better education.
Due to following reasons there has been slow movement of poeple during pastfew decades
(i) In the past few decades, there has not been much increase in the movement of people between countries due to various restrictions.
(ii) There was not much involvement of MNCs.
(iii) Information and communication technology was not so developed.