The article describes a model used to predict how the Jamaican economy would perform from 1968 to 1973. The researchers adjusted the model based on policies and available resources to estimate potential outcomes for economic and social indicators. By focusing on key constraints to development, they found that a lack of manpower in the public sector for infrastructure preparation was a major issue. By analyzing imports, exports, and other factors, they were able to calculate GNP, GDP, growth rates, and savings rates.