The yield to maturity (YTM) or internal rate of return (IRR) is a metric used in financial analysis to estimate the profitability of potential investments. Almost all finance textbooks state the following conditioning assumptions: (i) that the coupon payments can be reinvested at a rate equal to...

Airlines follow different strategies of aircraft sourcing and financing. Basic decisions include the choice of buy versus lease and long term versus short term acquisition of aircraft. Additional fleet and fleet planning characteristics include the desired fleet size, average aircraft age, or...