Examining the Connection Between Real Wages, Labor Productivity, and Inflation Using Nonlinear Methods in the Case of Türkiye: New Evidence Based on Wavelet Decomposition

Year 2026, Volume: 21 Issue: 1 , 1 - 29 , 01.04.2026

Enis Begeç

https://doi.org/10.17153/oguiibf.1797621

https://izlik.org/JA76RY33EC

Abstract

This study investigates the interrelationship between real wages, labor productivity, and inflation in Türkiye's manufacturing sector from 2005 to 2024, utilizing Fourier-based methods and wavelet decomposition. The analysis results indicate that inflation and the square of real wages reduce labor productivity, while real wages increase labor productivity. Furthermore, an inverted U-shaped relationship was found between wages and productivity. Fourier Granger causality results indicate a bidirectional causality relationship between the variables. In the short-term, the direction of causality is from inflation and the square of wages to labor productivity, while in the medium- and long-term, there is a reciprocal causality relationship.

Keywords

Labor Productivity , Real Wages , Inflation , Fourier Cointegration-Causality , Wavelet Decomposition

Türkiye Örneğinde Reel Ücretler, Emek Verimliliği ve Enflasyon Arasındaki Bağlantının Doğrusal Olmayan Yöntemler Kullanılarak İncelenmesi: Dalgacık Ayrıştırmasına Dayalı Yeni Kanıtlar

https://izlik.org/JA76RY33EC

Abstract

Bu çalışma, 2005-2024 yılları arasında Türkiye imalat sektöründe reel ücretler, emek verimliliği ve enflasyon arasındaki karşılıklı ilişkiyi Fourier tabanlı yöntemler ve dalgacık ayrıştırması yöntemini kullanılarak incelemektedir. Analiz sonuçları, enflasyonun ve reel ücretlerin karesinin emek verimliliğini azalttığını, reel ücretlerin ise emek verimliliğini artırdığını belirtmektedir. Ayrıca reel ücretler ve emek verimliliği arasında ters U-şeklinde bir ilişkinin olduğu bulgusuna ulaşılmıştır. Fourier Granger nedensellik sonuçları, değişkenler arasında çift yönlü bir nedensellik ilişkisine işaret etmektedir. Kısa vadede nedenselliğin yönü enflasyondan ve reel ücretlerin karesinden emek verimliliğine doğru iken, orta ve uzun vadede karşılıklı nedensellik ilişkisi vardır.

Keywords

Emek Verimliliği , Reel Ücretler , Enflasyon , Fourier Eşbütünleşme-Nedensellik , Dalgacık Ayrıştırması

References

• Akerlof, G. A. (1982). Labor contracts as partial gift exchange. The Quarterly Journal of Economics, 97(4), 543-569.
• Akerlof, G. A., & Yellen, J. L. (1986). Efficiency wage models of the labor market. Cambridge University Press. http://dx.doi.org/10.1017/CBO9780511559594.001
• Alexander, C. O. (1993). The changing relationship between productivity, wages, and unemployment in the UK. Oxford Bulletin of Economics and Statistics, 55(1), 87-102. https://doi.org/10.1111/j.1468-0084.1993.mp55001005.x
• Arulampalam, W., Devereux, M. P., & Maffini, G. (2012). The direct incidence of corporate income tax on wages. European Economic Review, 56(6), 1038-1054. https://dx.doi.org/10.1016/j.euroecorev.2012.03.003
• Becker, G. S. (1965). A theory of the allocation of time. The Economic Journal, 75(299), 493-517. https://doi.org/10.2307/2228949
• Becker, R., Enders, W., & Lee, J. (2006). A stationarity test in the presence of an unknown number of smooth breaks. Journal of Time Series Analysis, 27(3), 381-409. https://doi.org/10.1111/j.1467-9892.2006.00478.x
• Bildirici, M. E, & Aykaç, A. E. (2008). The relationship between wages and productivity: Tar unit root and tar cointegration approach. International Journal of Applied Econometrics and Quantitative Studies, 5(1), 93-110.
• Bitros, G. C., & Panas, E. E. (2001). Is there an inflation-productivity trade-off? Some evidence from the manufacturing sector in Greece. Applied Economics, 33(15), 1961-1969. https://doi.org/10.1080/00036840110043730
• Brown, C. V., Levin, E., & Ulph, D. T. (1976). Estimates of labor hours supplied by married male workers in Great Britain. Scottish Journal of Political Economy, 23(3), 261-277. https://doi.org/10.1111/j.1467-9485.1976.tb00780.x
• Brown, A. J. (2015). Can hiring subsidies benefit the unemployed? IZA World of Labor, 163. https://doi.org/10.15185/izawol.163
• Buck, A. J., & Fitzroy, F. (1988). Inflation and productivity growth in the Federal Republic of Germany. Journal of Post Keynesian Economics, 10(3), 428-444. https://doi.org/10.1080/01603477.1988.11489693
• Caragea, N. (2009). Time allocation in economics and the implications for economic development. Romanian Journal of Economics, 29(2(38)), 122-141.
• Carrion-i-Silvestre, J. L., & Sansó, A. (2007). The KPSS test with two structural breaks. Spanish Economic Review, 9(2), 105-127.
• Christopoulos, D. K., & Tsionas, E. G. (2005). Productivity growth and inflation in Europe: Evidence from panel cointegration tests. Empirical Economics, 30(1), 137-150. https://doi.org/10.1007/s00181-004-0227-3
• Clark, P. K. (1982). Inflation and productivity decline. The American Economic Review, 72(2), 149-154.
• Dritsaki, C. (2016). Real wages, inflation, and labor productivity: Evidences from Bulgaria and Romania. Journal of Economic & Financial Studies, 4(5), 24-36. https://doi.org/10.35341/2314-5419.2020.17.3
• Dritsakis, N. (2004). A causal relationship between inflation and productivity: An empirical approach for Romania. American Journal of Applied Sciences, 1(2), 121-128. https://doi.org/10.3844/ajassp.2004.121.128
• Enders, W. & Jones, P. (2015). Grain prices, oil prices, and multiple smooth breaks in a VAR. Studies in Nonlinear Dynamics and Econometrics, 20(4), 399-419. https://doi.org/10.1515/snde-2014-0101
• Erenburg, S. J. (1998). Productivity, private and public capital, and real wage in the US. Applied Economics Letters, 5(8), 491-495. https://doi.org/10.1080/135048598354410
• Eryılmaz, F., & Bakır, H. (2018). Real wages, inflation, and labor productivity: An evaluation within Turkish context. Hitit University Journal of Social Sciences Institute, 11(3), 1946-1959. https://doi.org/10.17218/hititsosbil.436936
• Freeman, D. G., & Yerger, D. B. (1998). Inflation and multifactor productivity growth: A response to Smyth. Applied Economic Letters, 5(5), 271-274. https://doi.org/10.1080/758524399
• Fuess, S. M. JR., & Millea, M. (2002). Do employers pay efficiency wages? Evidence from Japan. Journal of Labor Research, 23(2), 279-292. https://doi.org/10.1007/s12122-002-1007-5
• Gençay, R., Gradojevic, N., Selçuk, F., & Whitcher, B. (2010). Asymmetry of information flow between volatilities across time scales. Quantitative Finance, 10(8), 895-915. https://doi.org/10.1080/14697680903460143
• Gneezy, U., & Rustichini, A. (2000). Pay enough or don’t pay at all. The Quarterly Journal of Economics, 115(3). 791-810
• Günay, A., Metin-Özcan, K., & Yeldan, E. (2005). Real wages, profit margins, and inflation in Turkish manufacturing under post-liberalization. Applied Economics, 37(16), 1899-1905. https://doi.org/10.1080/00036840500217903
• Ha, J., Tan, P-P., & Goh, K-L. (2018). Linear and nonlinear causal relationship between energy consumption and economic growth in China: New evidence based on wavelet analysis. PLoS ONE, 13(5): e0197785. https://doi.org/10.1371/journal.pone.0197785
• Hall, S. G. (1986). An application of the granger & engle two-step estimation procedure to United Kingdom aggregate wage data. Oxford Bulletin of Economics and Statistics, 48(3), 229-239. https://doi.org/10.1111/j.1468-0084.1986.mp48003003.x
• Hondroyiannis, G. (1997). Seasonality-cointegration and the inflation, productivity and wage growth relationship in Greece. The Social Science Journal, 34(2), 235-247. https://doi.org/10.1016/S0362-3319(97)90053-7
• Hondroyiannis, G., & Papapetrou, E. (1998). Temporal causality and the inflation-productivity relationship: Evidence from eight low inflation OECD countries. International Review of Economics & Finance, 7(1), 117-135. https://doi.org/10.1016/S1059-0560(99)80020-3
• İkizler, H., & Dikilitaş Çelik, B. (2021). Labor productivity and real unit wage index in Turkiye. Industrial Policy, 1(2), 88-92.
• Jarrett, J. P., & Selody, J. G. (1982). The productivity-inflation nexus in Canada, 1963-1979. The Review of Economics and Statistics, 64(3), 361-367.
• Karaalp-Orhan, H. S. (2017). Labour productivity, real wages and unemployment: An application of bounds test approach for Turkey. Journal of Economic and Social Development, 4(2), 11-22.
• Katz, L. F. (1996). Wage subsidies for the disadvantaged. NBER Working Paper, 5679.
• Korkmaz, Ö. (2021). Is labor productivity linked to real wages? An empirical study of the Turkish manufacturing sector. Journal of Productivity, 2, 25-48. https://doi.org/10.51551/verimlilik.692326
• Kumar, S., Webber, D. J., & Perry, G. (2012). Real wages, inflation and labour productivity in Australia. Applied Economics, 44(23), 2945-2954. https://doi.org/10.1080/00036846.2011.568405
• Kwiatkowski, D., Philips, P. C. B., Schmidt, P., & Shin, Y. (1992). Testing the null hypothesis of stationarity against the alternative of a unit root: How sure are we that economic time series have a unit root? Journal of Econometrics, 54(1-3), 159-178. https://doi.org/10.1016/0304-4076(92)90104-Y
• Lee, J., & Strazicich, M. C. (2003). Minimum Lagrange multiplier unit root test with two structural breaks. The Review of Economics and Statistics, 85(4), 1082-1089.
• Metin-Özcan, K., Voyvoda, E., & Yeldan, E. (2002). The impact of the liberalization program on the price-cost margin and investment of Turkey’s Manufacturing Sector after 1980. Emerging Markets Finance and Trade, 38(5), 72-103.
• Millea, M., & Fuess, S. M. JR. (2005). Does pay affect productivity or react to it? Examination of U.S. manufacturing. The Quarterly of Economics and Finance, 45(4-5), 796-807. https://doi.org/10.1016/j.qref.2004.06.004
• Mora, T., López-Tamayo, J., & Suriñach, J. (2005). Are wages and productivity converging simultaneously in Euro-area countries? Applied Economics, 37(17), 2001-2008. https://doi.org/10.1080/00036840500217655
• Moses, L. N. (1962). Income, leisure, and wage pressure. The Economic Journal, 72(286), 320-334. https://doi.org/10.2307/2228670
• Narayan, P., & Smyth, R. (2009). The effect of inflation and real wages on productivity: New evidence from a panel of G7 countries. Applied Economics, 41(10), 1285-1291. https://doi.org/10.1080/00036840701537810
• Nasir, M. A., Wu, J., Howes, C., & Ripley, H. (2022). Asymmetric nexus between wages and productivity in the context of the global financial crisis. Journal of Economic Behavior & Organization, 198, 164-175. https://doi.org/10.1016/j.jebo.2022.04.001
• Park, J. Y. (1992). Canonical cointegration regressions. Econometrica, 60(1), 119-143.
• Pedroni, P. (2001). Fully modified OLS for heterogeneous cointegrated panels. B. H. Baltagi, T. B. Fomby, & R. C. Hill (Eds.), Nonstationary panels, panel cointegration, and dynamic panels (Advances in econometrics, Vol. 15, pp. 93-130). Emerald Group Publishing Limited. https://doi.org/10.1016/S0731-9053(00)15004-2
• Perron, P. (1989). The great crash, the oil price shock, and the unit root hypothesis. Econometrica, 57(6), 1361-1401.
• Phillips, P. C. B., & Hansen, B. E. (1990). Statistical inference in instrumental variables Regression with I(1) processes. The Review of Economic Studies, 57(1), 99-125.
• Ram, R. (1984). Causal ordering across inflation and productivity growth in the post-war United States. The Review of Economics and Statistic, 66(3), 472-477.
• Salop, S. C. (1979). A model of the natural rate of unemployment. The American Economic Review, 69(1), 117-125.
• Shapiro, C., & Stiglitz, J. E. (1984). Equilibrium unemployment as a worker discipline device. The American Economic Review, 74(3), 433-444.
• Shin, Y. (1994). A residual-based test of the null of cointegration against the alternative of no cointegration. Econometric Theory, 10(1), 91-115. https://doi.org/10.1017/S0266466600008240
• Solow, R. M. (1979). Another possible source of wage stickiness. Journal of Macroeconomics, 1(1), 79-82, https://doi.org/10.1016/0164-0704(79)90022-3
• Souchier, M. (2022). The pass-through of productivity shocks to wages and the cyclical competition for workers. Working Paper.
• Stiglitz, J. E. (1976). The efficiency wage hypothesis, surplus labour, and the distribution of income in L.D.C.s. Oxford Economic Papers, 28(2), 185-207.
• Stock, J., & Watson, M. W. (1993). A simple estimator of cointegration vectors in higher order integrated systems. Econometrica, 61(4), 783-820.
• Storm, S., & Naastepad, C. W. M. (2007). Why labour market regulation may pay off: Worker motivation, co-ordination and productivity growth. Economic and Labour Market Paper 2007/4.
• Strauss, J., & Wohar, M. E. (2004). The linkage between prices, wages, and labor productivity: A panel study of manufacturing industries. Southern Economic Journal, 70(4), 920-941
• Tang, C. F. (2012). The non-monotonic effect of real wages on labor productivity: New evidence from the manufacturing sector in Malaysia. International Journal of Social Economics, 39(6), 391-399. https://doi.org/10.1108/03068291211224900
• Tang, C. F. (2014). The effect of real wages and inflation on labour productivity in Malaysia. International Review of Applied Economics, 28(3), 311-322. https://doi.org/10.1080/02692171.2013.872084
• Taymaz, E., Voyvoda, E., & Yılmaz, K. (2024). Is there a virtuous cycle between wages and productivity? Turkish experience after the transition to democracy. World Development, 175, 106474. https://doi.org/10.1016/j.worlddev.2023.106474
• Tsionas, E. G. (2003). Inflation and productivity in Europe: An empirical investigation. Empirica, 30(1), 39-62. https://doi.org/10.1023/A:1022650710086
• Tsong, C. C., Lee, C. F., Tsai, L. J., & Hu, T. C. (2016). The Fourier Approximation and testing for the null of cointegration. Empirical Economics, 51(3), 1085-1113. https://doi.org/10.1007/s00181-015-1028-6
• Yıldırım, Z. (2015). Relationships among labour productivity, real wages and inflation in Turkey. Economic Research-Ekonomska Istraživanja, 28(1), 85-103. https://doi.org/10.1080/1331677X.2015.1022401
• Wakeford, J. (2004). The productivity-wage relationship in South Africa: An empirical investigation. Development Southern Africa, 21(1), 109-132. https://dx.doi.org/10.1080/0376835042000181444
• Walden, A. T. (2001). Wavelet analysis of discrete time series. In: C. Casacuberta, R. M. Miró-Roig, J. Verdera, & S. Xambó-Descamps (Eds.), European Congress of Mathematics. (Vol 202). Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-8266-8_56
• Weiss, A. (1980). Job queues and layoffs in labor markets with flexible wages. Journal of Political Economy, 88(3), 526-538.
• Zivot, E., & Andrews, D. W. K. (1992). Further evidence on the Great Crash, the Oil-Price Shock, and the unit root hypothesis. Journal of Business and Economic Statistics, 10(3), 251-270.