The effect of drug price liberalization on income distribution; A mathematical approach

Document Type : Research Paper

Authors

Department of Economics, Faculty of Law and Economics, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Isfahan, Iran

Abstract

The self-reversion pattern with distribution breaks has been used and the statistics cover the time period from 1971 to 2006. The results of short-term and long-term models show that economic growth has reduced poverty in the short term but has had no effect on inequality. In the long term, although economic growth has been poverty-relieving, it has increased inequality. In the long term, the openness of the economy to trade has directly increased the average income of the poor through the effect on income distribution, therefore, the openness of the economy through two direct (effect on income distribution) and indirect (effect on economic growth) can cause a decrease become poor While openness to foreign direct investment does not have a direct effect on the average income of the poor and can only be effective on poverty through the effect on economic growth. Therefore, the specific proposal of this article is that Iran can use world trade and economic openness as a tool to reduce inequality and poverty if economic infrastructures are reformed.

Keywords

[1] E. Abounoori and M. Shahrazi, Estimation of absolute poverty line based on food poverty line using mathematical programming: A case study of urban areas in mazandaran province, Iran. J. Econ. Res 22 (2017), no. 71, 65–80.

[2] Ch. Ackah and D. Medvedev, Oil discovery, real exchange rate appreciation and poverty in Ghena, Institute of Statistical, Social and Economic Research, Working Paper, 2019.

[3] N. Apergis and A. Cooray, Emerging Markets Revie, Elsevier 00544, 2018.

[4] A. Asadzadeh, Z. Heydari Dad and Z. Jame Shoorani, Investigating the relationship between foreign direct investment and institutional quality on poverty, J. Dev. Cap 4 (2017), no. 1, 7–26.

[5] H. Asgharpour and A. Mahdilou, The impact of inflationary environment on exchange rate pass- through on import prices in Iran: Markov–switching approach, J. Econ. Res. Policies 22 (2014), no. 70, 75–102.

[6] A. Assadzadeh, Z. Heydary Dad and Z. Jameshuorani, The relationship between foreign direct investment and institutional quality on poverty (Case of mena’s countries), J. Dev. Cap 4 (2018), no. 1, 7–26.

[7] F. Bagheri and H. Kavand, Measurement of poverty intensity in iran: applying sen-shorrocks-thon(SST) index, Soc. Welf. Q 5 (2016), no. 20, 181–192.

[8] F. Bazazan, A.R. Ghasemi, H. Raghofer, and S. Hassanvand, Investigating the effectiveness of government policies in reducing poverty in Iran, Econ. Dev. Policy 3 (2014), no. 8, 9–32.

[9] F. Bazzazan, A. Ghasemi, H. Raghfar and S. Hasanvand, The effectiveness of public policies in reducing poverty in Iran, Econ. Dev. Policy 3 (2015), no. 3, 9–32.

[10] I. Bonnori and M. Shahrazi, Estimating the absolute poverty line based on the food poverty line using mathematical programming: a case study of the urban areas of Mazandaran province, Iran Econ. Res. 22 (2016), no. 71, 65–80.

[11] M. Caner and B.E. Hansen, Instrumental variable estimation of a threshold model, Econ. Theor. 20 (2004),813–843.

[12] K.S. Chan, Consistency and limiting distribution of the least squares estimator of a threshold autoregressive model, J. Ann. Math. Stat. 21 (2019), 520–533.

[13] F. Cheng and D. Orden, Exchange rate alignment and producer support estimates (PSEs) for India, Agric. Econ.36 (2007), 233–243.

[14] N. Dahmardeh, M. Safdari and M. Sheihakitash, The effect of macroeconomic indices on income distribution in Iran, Iran J. Trd. Stud 14 (2020), no. 54, 25-55.

[15] V.A. Dang, M. Kim and Y. Shin, Asymmetric capital structure adjustments: new evidence from dynamic panel threshold models, J. Empir. Finance 19 (2019), 465–482.

[16] N. Erzrum Chiller, Various dimensions of poverty in Iran, Trend (Econ. Res. Trends) 27 (2018), 12–36.

[17] J. Foster, J. Greer and E. Thorbekc, Notes and comments a class of decomposable poverty measures, Econometrica, 52 (1984), 761–766.
[18] B.E. Hansen, Sample splitting and threshold estimation, Econometrica 68 (2020), 575–603.

[19] A. Khosravinejad, Estimation of poverty indices in iranian urban and rural households, Econ. Model 6 (2021), no. 18, 39–60.

[20] A. Khosrovinejad, Poverty estimation and poverty indicators in urban and rural areas, Econ Model 6 (2019), no. 39, 18–33.

[21] A. Koochakzadeh and S.A. Jalaei Esfandabadi, Effect of exchange rate uncertainty on non-oil exports in Iran, Agric. Econ. Res. 5 (2019), no. 19, 121–135.

[22] H.G. Min, S.O. Shin and J.A. McDonald, Income inequality and the real exchange rate: Linkages and evidence, Ann. Econ. Finance 16 (2015), no. 1, 115–141.

[23] M.A. Mohammadi, A. Vedadhir, A. Seyfi and R. Moshtagh, Meta-analysis of Poverty Studies in Iran, Soc. Welf. Q 12 (2012), no. 45, 7–48.

[24] A.Kh. Mohammadlou and H. Khadavisi, Investigating the relationship between exchange rate, inflation rate and interest rate under the approach of Fisher’s theories in Iran’s economy, Appl. Econ. Stud. Iran 6 (2016), no. 24, 199–221.

[25] D.K. Munda and W. Odhiamb, Urban poverty and labour force participation in kenya institute for public plicy research symposium, TWashington D.C. 2003 (2003).

[26] B. Ouattara, Modelling the long run determinants of private investment in Senegal, Economics Discussion Paper Series, 0413, Economics, The University of Manchester, 2004.

[27] M. Ravallion and G. Datt, Growth and redistribution components of changes in poverty: A decomposition with application to Brazil and India, J. Dev 38 (1992), no. 2, 195–275.

[28] M. Sarlab, The effect of exchange rate increase on income inequality in the urban sector, The second international conference on management. Accounting and Economics in Sustainable Development, Mashhad, 2018. https://civilica.com/doc/789110.  

[29] A. Shahabadi, M.K. Naziri and M. Nemati, The effect of income inequality on imports of goods and services in selected developed and developing countries, J. Econ. Model. Res 3 (2013), no. 12, 51–72.

[30] Ten dead, opinion; Safdari, Mehdi; His passion is important, The effect of macro indicators on income distribution in Iran (1353-1386), Bus. J 54 (2010), 25–55.

[31] M. Zahedi Asl and S.M. Basatian, Issues and problems of poverty in Iran, Welf. Plan. Soc. Dev 3 (2018), no. 7, 1–26.
Volume 14, Issue 2
February 2023
Pages 75-85
  • Receive Date: 01 February 2022
  • Revise Date: 29 April 2022
  • Accept Date: 01 May 2022