In the next decades, developed countries will experience dramatic changes in their demographic trends. The retirement of the wide baby-boom generations, the increase in life expectancy and the decline in fertility ratios are likely to modify the size and the age-structure of their populations....

Europe will remain the most visited touristic destination in the world with a total of 717 million tourists in 2020. The foreseen increase rate is 3.1% per year. This is one point lower than the world average, leading to a loss of market quota of Europe from almost 60% in 1995 to 46% in 2020....