▁Ra iders ▁soft ball ▁players <0x0A> </s> ▁Econom y ▁of ▁Mand atory ▁Palest ine ▁refers ▁to ▁the ▁economy ▁and ▁financial ▁development ▁of ▁the ▁British ▁Mand atory ▁Palest ine ▁between ▁ 1 9 2 0 ▁and ▁ 1 9 4 8 . ▁ ▁Between ▁ 1 9 2 2 ▁and ▁ 1 9 4 7 , ▁the ▁annual ▁growth ▁rate ▁of ▁the ▁Jewish ▁sector ▁of ▁the ▁economy ▁was ▁ 1 3 . 2 %, ▁mainly ▁due ▁to ▁imm igration ▁and ▁foreign ▁capital , ▁while ▁that ▁of ▁the ▁Arab ▁was ▁ 6 . 5 %. ▁Per ▁cap ita , ▁these ▁figures ▁were ▁ 4 . 8 % ▁and ▁ 3 . 6 % ▁respectively . ▁By ▁ 1 9 3 6 , ▁the ▁Jewish ▁sector ▁earned ▁ 2 . 6 ▁times ▁as ▁much ▁as ▁Arab s . ▁Comp ared ▁to ▁Arab ▁countries , ▁the ▁Palest in ian ▁Arab ▁individuals ▁earned ▁slightly ▁more . ▁ ▁The ▁country ' s ▁largest ▁industrial ▁zone ▁was ▁in ▁Ha ifa , ▁where ▁many ▁housing ▁projects ▁were ▁built ▁for ▁employees . ▁Ha ifa ▁was ▁the ▁location ▁of ▁the ▁Ha ifa ▁oil ▁ref in ery , ▁established ▁in ▁the ▁ 1 9 3 0 s , ▁and ▁the ▁end ▁point ▁of ▁the ▁Kir ku k - Ha ifa ▁oil ▁pipeline , ▁transport ing ▁oil ▁from ▁the ▁Kingdom ▁of ▁Ira q . ▁ ▁The ▁J aff a ▁Electric ▁Company ▁was ▁founded ▁in ▁ 1 9 2 3 ▁by ▁Pin has ▁R uten berg , ▁and ▁was ▁later ▁absor bed ▁into ▁a ▁newly ▁created