Diminutive territories from what I can observe, specially the stable ones, usually have strong tourism.
What type of tourism it offers however, depends on its geography, history, culture and/or what its economy provides.
Also I presume that the country's stable enough because of the strong economy. And in such case, I'd also presume it exists far (or at least sufficiently so) from chockepoints of geopolitical conflicts, meaning it isn't forced to take sides simply by proximity.