in 1968 katz was appointed director-general of the national insurance institute (nii) where he served until 1973. during his tenure, several laws were enacted and implemented including child benefit and compensation for veterans of the idf and their families, unemployment insurance, general disability insurance, the indexation of old age and survivors' benefits to average wages rather than to the cost-of-living index. katz also prepared the groundwork for research in social security matters, particularly on the measurement of poverty in israel, which continue to be published yearly to this day.