The Lange model has never been implemented anywhere, not even in Oskar Lange's home country, Poland, where Soviet-type economic planning was imposed after World War II, precluding experimentation with Lange-style economy.
Model Lange tidak pernah diimplementasikan di mana pun, bahkan di negara Oskar Lange itu sendiri, Polandia, tempat di mana perencanaan ekonomi tipe Soviet dilaksanakan setelah Perang Dunia Kedua, sehingga menghalangi eksperimen dengan ekonomi model Lange.