▁Time : ▁Part ▁two ," ▁The ▁Theory ▁of ▁Con stra ints ▁Journal ▁ 1 ( 5 ): 1 5 - 4 8 . ▁▁ ▁Eli y ahu ▁M . ▁Gold r att . ▁▁ 1 9 9 0 . ▁" Ch apter ▁ 6 ▁the ▁parad ig m ▁shift ," ▁The ▁Theory ▁of ▁Con stra ints ▁Journal ▁ 1 ( 6 ): 1 - 2 3 . ▁▁ ▁Eli y ahu ▁M . ▁Gold r att . ▁▁ 1 9 9 0 . ▁" Look ing ▁beyond ▁the ▁first ▁stage — Just ▁in ▁Time : ▁Part ▁three ," ▁The ▁Theory ▁of ▁Con stra ints ▁Journal ▁ 1 ( 6 ): 2 5 - 4 3 . ▁ ▁Indust ry ▁Week ▁ ▁Eli y ahu ▁M . ▁Gold r att . ▁▁ 1 9 9 1 . ▁" L ate - night ▁discuss ions ▁I : ▁Is ▁your ▁invent ory ▁putting ▁you ▁a ▁continent ▁away ?" ▁Indust ry ▁Week ▁July ▁ 1 , ▁ 2 4 0 ( 1 3 ): 2 4 - 2 6 . ▁▁ ▁Eli y ahu ▁M . ▁Gold r att . ▁▁ 1 9 9 1 . ▁" L ate - night ▁discuss ions ▁II : ▁Single - source ▁purch asing ' s ▁long - term ▁effects ▁can ▁be ▁dev ast ating ," ▁Indust ry ▁Week ▁August ▁ 5 , ▁ 2 4 0 ( 1 5 ): 2 9 - 3 1 . ▁▁ ▁Eli y ahu ▁M . ▁Gold r att . ▁▁ 1 9 9