An S-shaped curve relating service frequency with market share of passengers is often claimed to explain why airlines seek to increase the frequency of their services. An increase in frequency beyond some point brings about a more than proportional increase in patronage and, indirectly, in...

Finding a proxy for analyzing and developing policy responses to rare events is often challenging. In the case of commercial airline accidents, these are small in number, especially within most national jurisdiction. This makes it difficult to use standard, objective probability techniques for...