I need some help on the topic of title case following the Economist Style Guide. Does the possessive pronoun "its" get a capital in Economist style title case or not. There was a recent headline "Israel Protects Its Offshore Gas Fields" and the discussion was whether "its" should be lower case because it's short and not a principal word, or with a capital because it's a possessive pronoun. Any insights?
I took a look at the Economist style guide capitals section here and found no mention of "its."
A search of the Economist website turned up articles with the following titles (bold for emphasis):
So although the style guide doesn't specifically address the possessive pronoun "its," they consistently leave it lower-case.