Enflasyona Katki Hesaplamalari

Oguz Atuk () and Orhun Sevinc

CBT Research Notes in Economics from Research and Monetary Policy Department, Central Bank of the Republic of Turkey

Abstract: [TR] Enflasyon gelismelerini dogru degerlendirebilmek icin, TUFE’de yer alan alt gruplarda fiyat degisimlerinin seyri ile alt gruplarin aylik veya yillik enflasyona yaptigi katkinin anlasilmasi oldukca onemlidir. Turkiye Istatistik Kurumu’nun 2012 yilindan itibaren madde fiyatlarina ek olarak agirliklari da kamuoyu ile paylasmasi enflasyona katki hesabinin saglikli bir sekilde yapilmasinin onemini artirmistir. Bir urun grubunun enflasyona yaptigi katkiyi hesaplamak icin en basit yontem urun fiyati ile agirliginin carpimidir. Ancak, bu yontem endeksin yapisi ve yayimlanan verilerin tanimi geregi her zaman dogru hesabi vermeyebilmektedir. Bu not, katki analizi hesaplama yontemlerini detaylica sunarak iktisadi birimlerin enflasyon gelismelerini daha saglikli analiz etmesine katkida bulunmayi amaclamaktadir. [EN] To properly evaluate inflation developments, understanding the course of price changes in subgroups and the contribution of these changes to monthly and annual headline inflation are of crucial importance. TURKSTAT’s decision to release the weights of items in the CPI after 2012 increased the importance of contribution calculations. The simplest method to calculate the contribution of a product group on headline CPI is to multiply the related weight and inflation. However, in this case the structure of the index and the nature of the published data may lead to misleading results. On this note, a detailed description of the contribution calculation methods is presented.

Date: 2012
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