Class 1st Year Economics Notes Intermediate Board of Education (Sindh). That Application is helpful all the first year Commerce Students, Model College for Girls is the best Place for Science Commerce and Art Students, That Private college to Promote a new technique of Education. SIr, Muhammad Farhan is the Writter of these Notes and That is very helpful to all Commerce student. In this Application That all of Topics are Included.Money Barter SystemTrade UnionsTanha KarimInterestCauses of DifferencesWagesWagesMarketRentNational IncomeImportance of Elasticity of DemandLaws of ReturnsTheories of PopulationLaw of DemandElasticity of Demand