The demand for air transport is largely determined by the spending capacity of customers. Thispaper aims to offer more insight into the determinants of price elasticities in the aviation sector. Itseeks to identify both common and contrasting factors that influence the price elasticities, on...

Frequency of services and vehicle size are important policyinstruments of railway companies. Extending Mohring's basic'square root model' for frequencies, we arrive at more generalformulations for frequency, vehicle size and price underalternative regimes of welfare and profit optimisation. It...