Reuters reported that Cuba is marking the centenary of Fidel Castro's birth amid a deepening economic crisis, with the country's difficulties compounded by US oil restrictions and sanctions.

The economic pressure is visible through shortages of fuel and essential goods, weaker productive capacity and constraints on the government's ability to maintain economic activity. For businesses operating in or seeking exposure to Cuba, the environment creates significant uncertainty around access to inputs, foreign exchange and reliable infrastructure.

The crisis also illustrates the interaction between domestic economic structure and external constraints. State control over significant parts of the economy limits private-sector flexibility, while sanctions and restricted access to international finance can reduce the resources available for investment.

That combination creates a difficult policy environment. Authorities need to maintain basic services and economic stability while also finding ways to attract capital and improve productivity.

The private sector could play a larger role in such an adjustment, but meaningful reform would require policy changes capable of improving incentives, financing access and confidence among domestic and international investors.

The external dimension remains equally important. Any change in US policy towards Cuba could affect energy availability, trade and investment conditions, but businesses cannot assume such changes will occur.

For other emerging economies, Cuba's experience highlights the economic cost of prolonged isolation and weak investment capacity. Energy security, access to foreign currency and institutional flexibility can become decisive factors in maintaining economic resilience.

What to watch: US-Cuba policy, energy availability, private-sector reforms, foreign investment conditions and indicators of domestic production.