In general terms, the demand and the supply of maritime transport services interact with each other to determine freight rates. While there are countless factors affecting supply and demand, the exposure of freights rates to market forces is inevitable. Cargo volumes and demand for maritime transport services are usually the first to be hit by political, environmental and economic turmoil. Factors such as a slowdown in international trade, sanctions, natural disasters and weather events, regulatory measures and changes in fuel prices have an impact on the world economy and global demand for seaborne transport. These changes may occur quickly and have an immediate impact on demand for maritime transport services. As to the supply of maritime transport services, there is generally a tendency of overcapacity in the market, given that there are no inherent restrictions on the number of vessels that can be built and that it takes a long time from the moment a vessel order is placed to the time it is delivered, and is ready to be put in service.