29.23 The decrease of $3,623,400 under established posts ($2,958,100) and common staff costs ($665,300) is attributable to vacancies throughout the biennium. As of August 1983, the average vacancy rates in Professional and higher levels and General Service level had been 10.2 per cent and 6.5 per cent, respectively. These high vacancy rates reflect in particular difficulties in the recruitment of Arabic language staff. 29.24 An expected decrease of $55,700 under general temporary assistance is due to lower requirements for sick and maternity leave replacements. 29.25 A substantial increase of $1,764,900 under temporary assistance is primarily due to the higher vacancy situation mentioned above which, in turn, necessitated more use of temporary assistance. It also reflects higher costs than anticipated for travel and subsistence of conference-servicing staff to meetings from Geneva. 29.26 A net increase of $55,000 in overtime and night differential is primarly due to additional requirements for the International Conference on the Question of Palestine and the UNCTAD meetings in respect of security and document services at night, on weekends and official holidays. General operating expenses (Decrease: $142,400) 29.27 A saving of $142,400 under this heading is due to, inter alia, the decision to purchase compugraphics photocomposition equipment instead of continuing rental arrangements. Consequently, an amount of $119,500 was redeployed to purchase of equipment (see para. 29.30 below). Supplies, materials, furniture and equipment (Increase: $108,800) 29.28 The net increase of $108,800 is the result of a savings of $203,000 under supplies and materials and an increase of $311,800 under furniture and equipment. 29.29 A savings of $203,000 under supplies and materials is due to opportune timing of the purchase of paper and other materials and the decrease in the total number of page impressions in reproduction (see table in para. 29.29 above). / ... A/C.S/38/49/Add.29 English Page 14 
**Analysis**
The text appears to be related to the budget of an international organization, specifically the United Nations, and discusses various expenses and savings related to personnel, temporary assistance, and general operating expenses. The text does not seem to be related to economic development, natural resources, agriculture, forestry, fishing, industry, transport, communication, health, education, humanitarian aid, or culture. The focus on personnel and expenses suggests that the category might be Employment or Administration, but since the text is more specific to the UN's budget, I would lean towards a category that is more related to international organizations.

**Category**
Employment, Administration