Part three : causes of the development trend of leasehold and socio - economic values of the development . legislation for lessee interests is efficient amse of the development . use manner of society property is the ultimate reason of the development 租賃權(quán)物權(quán)化直接源于各時(shí)期各國保護(hù)承租人的立法,而根源于社會(huì)財(cái)產(chǎn)的利用方式,社會(huì)財(cái)產(chǎn)運(yùn)用“租賃”的利用方式越普遍,租賃權(quán)物權(quán)化的傾向就越明顯。