▁could ▁travel ▁between ▁Hong ▁Kong ▁and ▁K ow lo on ▁without ▁taking ▁fer ries . ▁As ▁a ▁result , ▁small ▁elect rical ▁boats ▁like ▁s amp ans ▁( 小 電 <0xE8> <0x88> <0xB9> ) ▁were ▁gradually ▁elimin ated . ▁ ▁K ai ▁Tak ▁Airport ▁was ▁expanded ▁in ▁the ▁first ▁half ▁of ▁the ▁ 1 9 7 0 s ▁to ▁handle ▁Bo eing ▁ 7 4 7 s , ▁despite ▁of ▁the ▁limited ▁land ▁space ▁and ▁proxim ity ▁to ▁nearby ▁hills . ▁ ▁Fin ance ▁People ▁grew ▁rich er ▁entering ▁the ▁ 1 9 7 0 s . ▁Not ▁surprising ly , ▁people ▁started ▁to ▁look ▁for ▁some ▁means ▁of ▁invest ment . ▁The ▁passing ▁of ▁Bank ing ▁Ord in ance ▁of ▁ 1 9 6 4 ▁would ▁begin ▁the ▁tight ening ▁up ▁of ▁banks . ▁A ▁minimum ▁capital ▁of ▁H K $ 5   mill ion ▁and ▁liquid ity ▁ratio ▁of ▁ 2 5 % ▁and ▁limitation ▁on ▁lo ans ▁and ▁invest ments ▁became ▁the ▁new ▁requirements ▁to ▁operate ▁leg ally . ▁People ▁began ▁to ▁have ▁more ▁trust ▁in ▁their ▁banks , ▁and ▁the ▁accum ulation ▁of ▁sav ings ▁led ▁to ▁people ' s ▁willing ness ▁to ▁invest . ▁ ▁So on , ▁the ▁stock ▁r ush ▁began . ▁New ▁stock s ▁were ▁on ▁sale ▁every ▁day ; ▁bro ker age ▁houses ▁m ush room ed ; ▁some ▁people ▁quit ▁their ▁jobs ▁to ▁become ▁full - time ▁invest ors , ▁suffering ▁a ▁kind ▁of ▁urban ▁disease ▁that ▁do ctors ▁called ▁" stock ▁ill