Determining the health of a particular industry often requires the careful assessment of various factors such as the current health of sales overall in the industry, the expectations of product demand in the next year and how easy it is to obtain asset equipment leasing or capital for company expansion. Each of these factors is generally dependent on how healthy the economy is in the industry's home country and can also be influenced by the health of the world economy, especially for industries that rely heavily on the strength of trade between countries and if that relationship is healthy.