The construction of a multivariable model to determine how earnings are co-related to ship’s size, type, distance, own demand, & numbers in the group, & over such times like 2003-2008 | The “capital gain/loss” (*) -not only to determine if capital gains should be taxed, as hitherto, but also for certain important shipping practices (**). We may call it: “the value of a company’s fleet issue” | The introduction of monopolistic competition into shipping industry is done for the first time, and perhaps has an interest for further research | Maritime economists dealt so far mainly with ship’s size, and not so much with ship’s type, vis-à-vis volatility. It is advisable to research further the question “why & how certain ship types earn more than others?” |