I rather like this article: Does having a king or a queen make a country stronger? – Sentinel & Enterprise.
Mainly because it articulates why I follow royalty – the historic ties to the past and the future is what gets me interested in it.
It also makes me remember a Danish newspaper comment after both the male football team and the handball teams had failed utterly in their respective championships – “Now, all we have to hold us together as a nation and excite us, is our royal family and the impending royal birth.” (I think it was around Christian’s birth, but I can’t say it for sure.)
Of course, republics have similar historic ties – the stories of all the places George Washington slept and ate have certainly become lore on its own, and there usually tend to be prominent affluent powerful people in republics as well as in monarchies.
But anyway, I thought it was an interesting article.