The peasants often use these resources as building materials for their houses. Three fifths of the land is arid and the remaining two fifths is very fertile due to the many springs, streams, and rivers. Those water resources help to support the market economy of Gressier that is largely based on agriculture. The following produces represent the predominant foodstuffs of the region and Haiti: corn (maize), rice, manioc, yam, coffee, sugarcane and millet. For this reason, Gressier could easily be the garret of Port-au-Prince if its land was properly cultivated.

To strengthen its economy, Gressier can to do several things. First, Gressier could begin the fight against erosion by planting more trees and building irrigation canals. A sound environment can lead to more fertile land, which may be used for agriculture. Secondly, an increase in tourism may also strengthen Gressier's economy. This increase in tourism could be achieved by attracting people to its magnificent beaches and its beautiful landscape. Our job as C.A.G.H is to play a large role in helping to ensure the prosperity of Gressier.