Abridgement of paper dd 5 December 1904 on what causes trade deficit. Yet the increasing overt import value is in reality being offset by several types of hidden export value 光緒三十年十月二十九日的「出入貨價相抵節略」，闡述本國貿易逆差之成因，並指出明貨進口之增長，實有數類出口隱物價可與之相抵