Swiss Relations
This is a positive dependency because the larger size of Switzerland allows Liechtenstein to use their currency in a wider spectrum. If Liechtenstein was to have its own currency, it would most likely not be effective because it would not be recognized across the world; therefore, limiting their purchasing power in other countries.
Once again, the small size of Liechtenstein and the fact that is a doubly-landlocked country makes it unnecessary to spend government funds on an active military. For this reason, Liechtenstein politically depends on the Swiss military to act as their protection if it becomes necessary. This benefits the country of Liechtenstein because it allows the government to allocate its funds to other aspects of the country while still having the availability of a military in the neighboring country. The only problem that could arise, though highly unlikely, would be if Switzerland and Liechtenstein were in conflict because Liechtenstein would be left undefended.
Other Foreign Relations
Information found on http://www.fuerstenhaus.li/en/presse/reden/dok_archiv-2006/World_Affairs_Council_San_Francisco_2006_05_30.pdf