Satın Alma Gücüne Yeni Bir Yaklaşım: İndirgenmiş Kişi Başı Gayri Safi Yurtiçi Hasıla

Year 2026, Volume: 41 Issue: 1, 230 - 263, 06.03.2026

Cemaleddin Gerede

https://doi.org/10.24988/ije.1624210

https://izlik.org/JA82RU85GT

Abstract

Bu çalışma, satın alma gücü paritesine göre hesaplanan kişi başı GSYH ile diğer yöntemlerle hesaplanan kişi başı GSYH arasındaki büyük farkı ortadan kaldırmak için yeni bir yaklaşım sunmaktadır. Bu yaklaşım ile ülkelerin satın alma gücündeki enflasyon ve döviz kuru kaynaklı değişimler dikkate alınmakta ve böylece ülkelerdeki satın alma gücü kayıpları kişi başı GSYH üzerinden takip edilebilmektedir. Bu sayede satın alma gücü paritesine göre yapılan hesaplama indirgenmekte ve kişi başı reel GSYH ile SAGP'ye göre hesaplanan kişi başı GSYH arasındaki olası farklar azaltılmaktadır.

Keywords

Satın Alma Gücü Paritesi , Kişi Başı GSYH , İndirgenmiş Kişi Başı GSYH

A New Approach to Purchasing Power: Discounted Gross Domestic Product Per Capita

https://izlik.org/JA82RU85GT

Abstract

This study presents a new approach to eliminate the large gap between GDP per capita calculated according to purchasing power parity and GDP per capita calculated by other methods. With this approach, inflation and exchange rate-driven changes in the purchasing power of countries are taken into account, and thus, the purchasing power losses in countries can be tracked through GDP per capita. In this way, the calculation based on purchasing power parity is discounted, and the potential differences between the real GDP per capita and the GDP per capita calculated according to PPP are reduced.

Keywords

Purchasing Power Parity , GDP Per Capita , Discounted GDP Per Capita

References

• Ahn, J., Mano, R.C. & Zhou, J. (2020), Real Exchange Rate and External Balance: How Important Are Price Deflators?. Journal of Money, Credit and Banking, 52: 2111-2130. https://doi.org/10.1111/jmcb.12746
• Antal, M., & van den Bergh, J. (2014). Evaluating alternatives to GDP as measures of social welfare/progress. European Commission European Research Area. Retrieved March, 20, 2020.
• Ardeni, P. G. (1989). Does the Law of One Price Really Hold for Commodity Prices? American Journal of Agricultural Economics, 71(3), 661-669.
• Armiento, M. (2018). The sustainable welfare index: towards a threshold effect for Italy. Ecological Economics, 152, 296-309.
• Cassel, G. (1921). The world's money problems. New York: E.P. Dutton and Co.
• Cassel, G. (1922). Money and foreign exchange after 1914. New York: MacMillan.
• Chai, T., & Draxler, R. R. (2014). Root mean square error (RMSE) or mean absolute error (MAE)? – Arguments against avoiding RMSE in the literature. Geoscientific model development, 7(3), 1247-1250. https://doi.org/10.5194/gmd-7-1247-2014.
• Cook, D., & Davíðsdóttir, B. (2021). An appraisal of interlinkages between macro-economic indicators of economic well-being and the sustainable development goals. Ecological Economics, 184, 106996.
• Costanza, R., Hart, M., Talberth, J., & Posner, S. (2009). Beyond GDP: The need for new measures of progress. The pardee papers.
• Deaton, A. (2010). Price Indexes, Inequality, and the Measurement of World Poverty. American Economic Review, 100 (1), 5–34.
• Hodson, T. O. (2022). Root-mean-square error (RMSE) or mean absolute error (MAE): when to use them or not. Geoscientific Model Development Discussions,15,5481–5487, https://doi.org/10.5194/gmd-15-5481-2022,.
• Hyndman, R. J., & Koehler, A. B. (2006). Another look at measures of forecast accuracy. International Journal of Forecasting, 22(4), 679–688. https://doi.org/10.1016/j.ijforecast.2006.03.001
• Inklaar, R., & Rao, D. S. P. (2017). Cross-Country Income Levels over Time: Did the Developing World Suddenly Become Much Richer? American Economic Journal: Macroeconomics, 9(1), 265–290. http://www.jstor.org/stable/26156470
• Lawn, P.A. (2005). An Assessment of the Valuation Methods Used to Calculate the Index of Sustainable Economic Welfare (ISEW), Genuine Progress Indicator (GPI), and Sustainable Net Benefit Index (SNBI). Environment, Development and Sustainability, 7(2), 185-208. https://doi.org/10.1007/s10668-005-7312-4
• Lichtenberg, Frank L. (1998). Pharmaceutical Innovation, Mortality Reduction, and Economic Growth. NBER Working Paper no. 6569, May. Cambridge, Mass.: NBER.
• Lyon, M. & Olmo, J. (2018). Does the PPP condition hold for oil-exporting countries? A quantile cointegration regression approach. International Journal of Finance & Economics, 23(2), 79-93.
• Ravallion, M, (2020). On Measuring Global Poverty. Annual Review of Economics, 12(1),167-188,
• https://ssrn.com/abstract=3669611 or http://dx.doi.org/10.1146/annurev-economics-081919-022924
• Rogoff, K. (1996). The Purchasing Power Parity Puzzle. Journal of Economic Literature, 34: 647-668.
• Subasat, T., & Uysal, S. (2018). Ülkelerin Ekonomik Gelişmişlik Düzeyi Karşılaştırmalarında Yeni Bir Ölçüt: Düzeltilmiş Gayri Safi Milli Hasıla. Efil Ekonomi Araştırmaları Dergisi, 1(2), 74-89.
• Taylor, A, M., & Taylor, M. P. (2004). The Purchasing Power Parity Debate. Journal of Economic Perspectives, 18 (4): 135–158.
• Van den Berg, H. (2002). Does Annual Real Gross Domestic Product per Capita Overstate or Understate the Growth of Individual Welfare over the Past Two Centuries? The Independent Review, 7(2), 181–196. http://www.jstor.org/stable/24562665
• World Bank. (2020). Purchasing Power Parities and the Size of World Economies: Results from the 2017 International Comparison Program. Washington, DC: World Bank.