Omid Ranjbar
Iran and Trade Promotion Organization, Allameh Tabataba'i University, Tehran, Iran
[ 1 ] - A New Unit Root Test against Asymmetric ESTAR Nonlinearity with Smooth Breaks
T his paper proposes a new unit root test against the alternative of symmetric or asymmetric exponential smooth transition autoregressive (AESTAR) nonlinearity that accounts for multiple smooth breaks. We provide small sample properties which indicate the test statistics have good empirical size and power. Also, we compared small sample properties of the test statistics with Christop...
[ 2 ] - Stock Market Interactions between the BRICS and the United States: Evidence from Asymmetric Granger Causality Tests in the Frequency Domain
The interaction of BRICS stock markets with the United States is studied using an asymmetric Granger causality test based on the frequency domain. This type of analysis allows for both positive and negative shocks over different horizons. There is a clear bivariate causality that runs both ways between the United States stock market and the respective BRICS markets. In addition, both negative a...
[ 3 ] - Reopening the Convergence Debate when Sharp Breaks and Smooth Shifts Wed, 1870-2010
Abstract This paper attempts to re-investigate the catching-up (stochastic convergence) hypothesis among the selected 16 OECD countries applying the time series approach of convergence hypothesis with annual data over one century. To reach this aim, we propose a model which specifies a trend function, incorporating both types of structural breaks – that is, sharp breaks and smooth shifts usin...
[ 4 ] - Income Convergence toward USA: New Evidences for Latin and South American Countries
Abstract In this paper we test two versions of convergence hypothesis namely deterministic or conditional convergence and stochastic or catching up hypothesis using Carrion-i-Silvestre et al. (2005) stationary test. The results show Latin and South American countries (LSA) catching up process toward the USA failed in 1980s and somewhat in 1990s. But in 2000s most of them could lie in converge...
[ 5 ] - تحلیل پویایی صادرات غیرنفتی ایران: نتایج جدید با کمک نظریه پیچیدگی اقتصادی
نظریه پیچیدگی اقتصادی که در سال‌های اخیر توسط اقتصاددانان توسعه هاروارد و ام آی تی مطرح شده است، بر ضرورت توجه به قابلیت‌ها و توانمندی‌های انباشته شده هر کشور در جهت تغییر ساختاری و ارتقاء سطح پیچیدگی اقتصادی تأکید دارد. در مقاله حاضر برای اولین بار پویایی‌های صادرات محصولات غیرنفتی ایران با کمک نظریه پیچیدگی اقتصادی طی دوره 2015-1997 بررسی شده است. نتایج تحقیق نشان دهندۀ کاهش سهم محصولات پیچید...
[ 6 ] - Which Countries are Catching up? New Evidences Using Flexible Fourier Stationary Test
In this paper, we tested the catching-up hypothesis toward the USA using Becker et al. (2006) flexible Fourier KPSS stationary test over the period 1960-2009. The mentioned test could control for unknown number and form of structural breaks using a selected frequency component of a Fourier function. Our results show almost poor countries stay poor and almost rich countries stay rich. South Kore...
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