Portugal was a poor country with a hardworking people, who carefully took care of its resources. Families grew vegetables, harvested fruits and nuts. They were happy, had plenty of gold, no debts.
Since the EEC became UE and Portugal, against the practices of other small countries, did not ask for exceptions against the general Treat, corporations may register in Luxembourg or Holland and pay taxes there instead of here. As the larger chains of supermarkets operate all over the country and act as in cartels, with concerted prices and discounts and tough rules for their suppliers, these have no profits; they cannot invest in better products, in nothing.