Nationality of 'Swedish' emigrants from Norway?

Can anyone tell me what would have been considered the 'correct' nationality for emigrants in the following categories? [?] Swedish men who have been living in Norway prior to emigrating; [?] Swedish-born women who married Norwegians and lived in Norway prior to emigrating; [?] Children born in Norway to parents who were both born in Sweden, but living in Norway prior to emigration; [?] Swedish-born children adopted by Norwegian parents. Thanks.