Browsing by Person "Walter, Timo"

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    Applied policy research through the lens of new quantitative trade models
    (2021) Walter, Timo; Jung, Benjamin
    This cumulative dissertation consists of four essays focusing on the applied policy research in international trade. I conduct policy research on current and relevant trade subjects using state-of-the-art quantitative trade models. In the first two essays I analyze the impact of potential trade policies before they are implemented (ex-ante), while in the two later essays I examine policy issues and their effects after they were implemented (ex-post). The first essay is dedicated to the exploration of the trade and welfare effects of a potential free trade agreement (FTA) between the United States and Japan. Examining the effects of this bilateral FTA is of economic relevance as Japan is the largest trading partner for the United States without an established FTA. Based on the new quantitative trade model of Caliendo and Parro (2015) I consider various trade policy scenarios of such a potential FTA. In my counterfactual analysis I focus on the decrease of tariffs as well as on the reduction of different levels of non-tariff barriers. My findings indicate that the largest trade effects are driven by the reduction of non-tariff barriers. Furthermore, I compare the impact of a bilateral “Deep FTA” with the impact of the Trans-Pacific Partnership (TPP). The results show that the United States would prefer joining TPP; Japan would benefit the most of a “Deep FTA”. The second essay of my dissertation project concentrates on the abolition of import tariffs in the automotive sector between the EU and the United States. To study the potential policy implications of the so-called “Zero Tariff Solution”, this essay applies the Caliendo and Parro (2015) framework and the empirical approach of the first essay. Hereby, several possible trade policy scenarios are analyzed. The key result clearly shows that the highest welfare gains would be achieved by the “grand solution” where the EU and the United States reduce the automotive tariffs for all WTO countries. At the heart of the third essay lies the question about the underlying reasons for the steady decline of unemployment in Germany since the peak in 2005. In particular, I dissect the employment effect of the “rise of the East” (rise in trade between Germany and Eastern Europe) and that of the fourth stage of the German labor market reform (“Hartz IV"). By extending the Caliendo et al. (2019) dynamic trade model I can show that the “Hartz IV" reform decreases the short-term unemployment by 0.4 percent. I examine the productivity growth of Germany and Eastern Europe as potential drivers for the increased trade. I discover that the German productivity growth leads to a decrease in short-term unemployment, whereas the productivity growth in Eastern Europe enhances the German short-term unemployment slightly. Thus, the overall effect of the “rise of the East” driven by the productivity growth of Germany and Eastern Europe contributed to a slight decrease in German short-term unemployment. The fourth essay investigates social welfare in Germany while taking income inequality into account. The essay consists of two parts: In the first part (closed economy setting) we study the welfare effects of the German “Tax-Reform 2000”, the largest tax reform of the last decades. In the second part (open economy setting) we concentrate on the social welfare effects of the trade liberalization in Germany between 1995 and 2014. We apply the Antràs et al. (2017) approach which considers income inequality when focusing on social welfare. The results demonstrate that the “Tax-Reform 2000” contribute to a minor average annual social welfare growth. However, this additional social welfare growth strongly varies with the social planer’s inequality aversion. Additionally, we identify the optimal tax-progressivity for each year of the period. Furthermore, when studying the trade liberalization, we find support that a counterfactual move of the German economy of the year 2014 to the trade openness of 1995 would severely reduce the social welfare.
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    The rise of Eastern Europe and German labor market reform : dissecting their effects on employment
    (2021) Walter, Timo
    From the early 1990s until 2005 the unemployment rate rose in Germany from 7.3% to 11.7%. While the unemployment rate reached its peak in 2005, it decreased steadily in the following years. On the one hand, the fourth stage of the German labor market reform (Hartz IV) was implemented in 2005 with the intent to cut the unemployment rate. On the other hand, the productivities in Germany and Eastern Europe grew strongly during the same period, enhancing the joint trade. The “rise of the East”, in terms of rising trade, is likely to have had an ambiguous effect on the German labor market. This paper investigates the employment effects of the “Hartz IV-Reform”. Further, it concentrates on the labor market effects of the German and Eastern European productivity shock. The focus lies on the national and county level (including 402 counties). As the effects on regional labor markets differ and take time, the paper builds on the dynamic and spatial trade model of Caliendo et al. (2019). I find that the “Hartz IV-Reform” and the German productivity contributes positively to the decline of unemployment, whereas the increase in Eastern European productivity is only responsible for a minor increase in unemployment.
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    Trade and welfare effects of a potential free trade agreementbetween Japan and the United States
    (2018) Walter, Timo
    This paper deals with the trade and welfare effects of a potential bilateral trade agreement between the US and Japan. A possible agreement is currently being discussed between Washington and Tokyo, although, there is also the alternative for the US government joining Trans-Pacific Partnership (TPP). Based on the theoretical model of Caliendo and Parro (2015) I analyse the welfare gains of such a bilateral free trade agreement (FTA) in the style of Aichele et al. (2014). In particular, I simulate three scenarios with different levels of integration: The reduction of tariffs only, the scenario of a shallow FTA, and a deep FTA. In addition, the paper compares the trade and welfare changes of a deep FTA to the welfare effects of TPP. The findings are that Japan has the highest welfare gains with a FTA (0.085%), whilst the United States benefits the most from TPP with a welfare gain of 0.05%.