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A seminar was held at Istanbul Nişantaşı University’s NeoTech Campus, whr Prof. Dr. Junsoo Lee from the University of Alabama's Department of Economics presented new approaches on “Robust IV Unit Root Tests.” During the seminar, it was emphasized that IV estimation methods have broad applications in econometric analysis. Lee began by discussing Brownian processes and explored the application areas of IV estimation methods, as well as the current debates in the field. Additionaly, he touched upon the test statistics that arise when IV estimates are stable, explaining under which conditions standard normal results are valid. The seminar included a discussion among participants on various techniques such as detrending methods, trend breaks, and the DF Trend Method, with suggestions made for further development of these methods.

In the continuation of his presentation, Prof. Dr. Lee explained how different model structures can be made more flexible and effective, providing details on weighted moments and RALS procedures in particular. While pointing out some shortcomings of IV estimation methods, Lee emphasized the need for further improvement of these techniques. Furthermore, Prof. Lee introduced new proposals such as model average estimators, Fourier functions, and the extension of cointegration tests, noting that research in this area is ongoing. At the end of the seminar, a certificate of participation was presented to Prof. Junsoo Lee.