def intersection(self, other, sort=False):
        self._validate_sort_keyword(sort)
        self._assert_can_do_setop(other)
        other, result_names = self._convert_can_do_setop(other)
        if self.equals(other):
            return self
        self_tuples = self._ndarray_values
        other_tuples = other._ndarray_values
        uniq_tuples = set(self_tuples) & set(other_tuples)
        if sort is None:
            uniq_tuples = sorted(uniq_tuples)
        if len(uniq_tuples) == 0:
            return MultiIndex(levels=self.levels,
                              codes=[[]] * self.nlevels,
                              names=result_names, verify_integrity=False)
        else:
            return MultiIndex.from_arrays(lzip(*uniq_tuples), sortorder=0,
                                          names=result_names)