Figure 1
The model shows four textboxes. The left textbox is labeled “Factor Conditions (1)”. The top center textbox is labeled “Firm Strategy, Structure and Rivalry (4)”. The right textbox is labeled “Demand Conditions (2)”. The bottom center textbox is labeled “Related and Supporting Industries (3)”. All four textboxes are connected by double-headed arrows. A diagonal double-headed arrow connects the left textbox to the top-center textbox. A double-headed arrow connects the top-center textbox to the right textbox. Another double-headed arrow connects the right textbox to the bottom center textbox. A diagonal double-headed arrow connects the left textbox to the bottom center textbox. A horizontal double-headed arrow in the center connects the left textbox to the right textbox, while a vertical double-headed arrow crosses the center horizontal arrow and links the top-center textbox and the bottom-center textbox.Determinants of national competitive advantage. Source: Porter (1990)