Yes tourists DIRECTLY and INDIRECTLY contribute a larger then reported portion of the economy, last year alone 2.3 trillion baht was claimed by REPORTED (probably for tax claims) farangs.
That does not count all the indirect money spent by girls family
and ESP not count all the times the baht was passed around in the economic circulation by thais to further improve their economy.
If tourism stops right now and all the farangs go home, the economy will be reduced by at least 1/3, more so as time goes on. The baht circulation of farang money that was introduced indirectly by farangs wills cease to exits and once again....
more wealth will be transferred OUT of thai then IN.
I know some of you will not understand my point but try