A Dynamic Analysis of the Twin-Deficit Hypothesis: the Case of a Developing Country

Ibrar Hussain (), Umar Hayat (), Md Shabbir Alam () and Uzma Khan ()
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Ibrar Hussain: University of Malakand
Umar Hayat: University of Swat
Md Shabbir Alam: University of Bahrain
Uzma Khan: Prince Sattam Bin Abdulaziz University

Asia-Pacific Financial Markets, 2024, vol. 31, issue 1, No 2, 25-52

Abstract: Abstract The main economic challenge is rising aggregate demand, which leaves the economy short on resources and leads to expanding fiscal and external account deficits. The current study uses autoregressive distributed lag (ARDL) model to evaluate the twin deficit hypothesis in the context of Pakistan in an effort to find an answer to this question. The study uses augmented ARDL, popularized by McNown et al. (Appl Econ 50:1509–1521, 2018) and Sam et al. (Econ Model 80:130–141, 2019), to address the degenerate problems that might arise while applying the ARDL approach. Two separate models were estimated, one with the current account balance as the dependent variable and the other with the balance of trade. In the long run, both models confirm the conventional interpretation of twin deficit hypothesis in Pakistan, with the causality running only from the fiscal deficit to the balance of trade. Other control variables in both models are crucial in understanding the current account balance and balance of trade. According to models, an increase in the exchange rate, as measured by the log of the nominal effective exchange rate, improves both current account and trade balance, verifying the elasticity approach in the long run. The openness of the economy is found to worsen current account balance, and the result is statistically significant. Contrarily, openness has been improved trade balance, but the result is statistically insignificant. To control a large and persistent external deficit, the government has to reduce its fiscal deficit, and such a strategy would be successful when monetary policy is accommodative.

Keywords: Twin-deficit hypothesis; Exchange rate; Fiscal policy; Monetary policy; ARDL (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10690-023-09405-y

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