KENNEDY PLEDGES TO PRESS TAX CUT TO SPUR ECONOMY; Says He Will Seek Slashes in 1963 in Corporate and Individual Levies TALKS TO BUSINESSMEN Asserts Plan Would Increase Spending and Thus Serve as Aid to Industry Tests Are Set Forth KENNEDY PLEDGES TO PRESS TAX CUT Differs with Rockefeller
S To Econ Club of NY on plans for tax cut and tax reform to aid econ