cndcit said:
How are joint anything possible if each live in different countries?
If the spouses live in different countries, then certain types of financial evidence would not be expected - like joint utility bills, both names on a lease, etc.
You could still get other types of financial evidence: naming each other as beneficiaries on insurance and in wills, for example. For young couples, though, the visa officer won't be surprised if you don't have it.
I know at my husband's appeal the judge pretended to be surprised that my husband wasn't named in my will and life insurance. The fact that I have neither didn't seem to be a sufficient explanation for her.