 mobility by income level. Social mobility basically it is the change in the status and normally everyone tries to improve towards the upward mobility especially in the developed world where the political system is also focusing on the improvement of economy and ultimately the state with the concept of welfare state they also try to improve the status and life of the their people. So this section specifically defines the mobility in US society mainly due to the difference in their income levels. According to the nature of their job according to their work skills. So it mainly focuses on the time period of 1980 till 2003 where some important assumptions they are normally practiced and they are normally written by the researchers. The assumptions basically deal that what type of and how much income normally people enjoy and what type of mobility on the basis of their income is an interesting study with special context of US model. So US families were at different income levels made out of between 1980 and 2003. We can say that from 1980 till 2003 US families they normally improved 57% with the level of their income and especially people those do not have much income they are they are still living the modest life and the lowest income in US. The people those do not have the opportunities to live a proper life they were considered 20% of the whole population. So by analyzing this point the important thing which we want to highlight here that when we have to analyze the classes of a society then we have to think about the numbers that how much people how many people they are living a modest or a middle class life and how much are below the line and they are living a lower income life in any society. So in the case of US society and US system people those are living a middle class life they are in the effort to move from middle to upward and those who are living a lower life they are trying to be the part of the middle class. So this is where the importance of the society is that people are always trying to get out of one class and move towards the other class on the basis of their income here is a very important point which we have to keep in mind that they are trying to move on the basis of their income I am not saying on the basis of their education or the basis of their job nature a skilled job nature any assa nahi hain ke vaha ke moshrei ke andar logome yeh trend hain ke unne highest post par pachna hain but they want to increase their life wo job wo effort wo business ki base par bhi ho sakti hain wo daily working habits ki base par bhi ho sakti hain aur wo malls jo develop kailate hain wo hain par jo trend hain social mobility ka ya apni life ko improve karne ka wo yahi hain ke log hiya chahati hain ke un ka status aise improve wo ke uske saath koi title jo hain wo match kar jai yaani income ke saath saath hain hain jo trend hain wo khusus pakistan jai se moshrei ke andar yahaan logome ki yeh soch hain ke agar hain me apna status improve karna hain to hain me uske saath koi important title bhi required hain yaani agar koi bachya pail likh chahata hain to uska yeh kyaal hota hain ke usse aisi job mil jai jiske saath uske koi title wo bhi aisa title ho jiske saath status linked wo yaani siraf apni effort mehnat yaa job ki bajai koi business koi aisa start up jo ke bachon ko youth ho opportunities de sakta hain maare jise moshrei ke andar uska trend abhi nahi hain uske mukabhle mein humne jo uske case me dekhah ki wahan logon ka main focus kya hain that is the increase of income wo increase of income jo hain wo specified nahi hain with the title of the job or with the specific nature of the job. They are focusing on the increase in the income and that income can be can become on the basis of their nature of business, their nature of hardware or some opportunities given by their political system or given by their overall combined efforts. So social mobility is ka buniadi tal look income ke saath hain, lekin income ka matlab ye bhi hain ki aap kis tari ke se effort krte hain aur uske liye kaunse opportunities, kaunse jo floors wo aap open karna jahate hain isi wajah se, hain maare moshrei ke andar afraad ka jo class system ka change hain, yaani lower se middle ki tarah faane ka jo process hain wo bohar zyada slow hain aur isi wajah se effort jo hain wo maashre me productive, important paat banne ki bhajai jo hain, wo unke dependency bharti chali jati hain apni families ke upar aur ye dependency jo hain wo overall maashre ke andar jo hain wo improvement nahi lati, bhe ke ye dependency baaki sectors ko bhi influence krti hain, wo health sector bhi hota hain, wo economic sector bhi hota hain, to naaje iss overall approach ko iss thinking ko aur iss philosophy ko improve karne ki zeroorat hain.