What does 「產」 in 「資產」 actually mean?
When we say 個人資產 (personal assets) we are referring to all the money and property owned by a person, in other words, 'one's worth' or 'one's wealth'
資 - 資金 (capital)
產 - 產業 (estate; property) e.g. 房地產 (real estate)
資產 - asset (all the money and property owned by someone) including 可流動資金 (liquid funds) and  不動產 (immovable property)