You might look at this previous answer

I'll also add that during Batista's reign from 1952 to 1958, the lower classes starved and were jobless, the middle class was nearly non-existent. Reliance on sugar would prove to be the downfall of a Cuban dictator yet again, the economy stagnated under his reign for a few reasons. First of all, agriculture was un-diversified, most of the land was kept idle in case sugar prices grew, which during this period, they did not. Second, due to this reliance on sugar and trade relationships with the United States (which bought most of Cuba's sugar in exchange for no competition in industry), native Cuban industry was nearly non existent as it could not compete with much cheaper Cuban imports. Much of Cuba served as an agricultural peasant class and even then, the sugar crop lasted for a four month period after and before which, poverty and near starvation were the norm. The sustaining of this peasant class by Batista would facilitate much of the ground forces by the 26 July Movement. One quote from a revolutionary source put it very succinctly

The people are waking up. The peasants are tired of speeches and promises of agrarian reform and redistribution of land, and they know they can't expect anything from the politicians. Half a million Cubans are out of work because of the incompetence, shortsightedness, and greed of the bad administration we have had... the hundreds of thousands of families living in shacks, sheds, vacant lots, tiny rooms, or paying exorbitant rents; the workers on starvation wages, whose children have no clothes or shoes to wear to school... The people expect nothing from the political parties. They expect to get everything from the Revolution, and they will get it!

Source: Diary of the Cuban Revolution, Carlos Franqui