This study estimates the effects of devaluation and appreciation of real effective exchange rate ( REER ) on revealed comparative advantage ( RCA ) at Harmonized System 2-digit level of exports in Pakistan. A non-linear Autoregressive Distribute Lag ( ARDL ) technique is applied to test the asymmetric evidence. This study employs two models to explore the export performance. Findings/Originality: The results of model 1 estimation confirm the proof of asymmetric ARDL and concludes that devaluation has a positive effect on selected RCA ’s index value and helps enhance exports of Pakistan. Meanwhile, the appreciation of REER is having an adverse impact. Model-2 estimates the effect of these selected RCA’s , REER , and world aggregated income ( Yw ) on the trade balance ( TB ) of Pakistan. The results estimate that an increase in selected RCA’s index values, world aggregated income, and REER depreciation is useful to decrease in deficit TB of Pakistan.

中文翻译：

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实际有效汇率对巴基斯坦显性比较优势和贸易差额的影响

本研究估计了实际有效汇率 (REER) 贬值和升值对巴基斯坦协调制度 2 位数出口水平的显示比较优势 (RCA) 的影响。应用非线性自回归分布滞后 (ARDL) 技术来测试非对称证据。本研究采用两种模型来探索出口表现。发现/独创性：模型 1 估计的结果证实了不对称 ARDL 的证据，并得出结论，贬值对选定的 RCA 的指数值有积极影响，有助于促进巴基斯坦的出口。同时，REER的升值正在产生不利影响。模型 2 估计了这些选定的 RCA、REER 和世界总收入 (Yw) 对巴基斯坦贸易平衡 (TB) 的影响。