Essays on administrative protection and trade deflection

This dissertation analyzes the trading effects and the politics of antidumping. The first essay empirically examines the influence of partisanship on antidumping. I show that an increase in the leftist orientation of the government makes labor intensive industries less likely to file an antidumping petition. I also demonstrate that the increase in the leftist orientation of the government is associated with an increase in the likelihood of an affirmative antidumping outcome for the petitions of labor intensive industries. The second essay investigates the effect of past exporting relationships of the firms, whose products are targeted by antidumping duties, on their export flows to alternative markets. My estimations show that facing an antidumping duty on a product leads to a 18% increase in the exports of the firm for that product to the alternative countries where the firms previously exported the same product and a 8% increase to the countries where the firms exported another product. On the contrary, I fail to find a significant effect of antidumping duties on the exports of the particular product to third countries to which the firm did not export before. Further, I show that a firm’s probability to start exporting the duty imposed product in a different destination increases by 8–10% if the firm already exported another product to that destination. However, I find no such evidence for the countries to which the firm did not export before. The third essay empirically analyzes the effect of potential antidumping claims, resulting from an antidumping investigation in the domestic market, on the quality of exported products to the target countries. My findings suggest that retaliation threats increase the quality of firms’ shipments for the named industries’ products to the target countries by 11%. This effect is also significantly increasing in the share of the exports of the named industries’ products shipped to the target country in the firms’ total exports. Further, I show that this effect is 4% higher for the exporters serving the developed countries and 3% higher for ones serving the heavy antidumping users.

Development and verification of control and protection strategies in hybrid AC/DC power systems for smart grid applications

Modern power networks incorporate communications and information technology infrastructure into the electrical power system to create a smart grid in terms of control and operation. The smart grid enables real-time communication and control between consumers and utility companies allowing suppliers to optimize energy usage based on price preference and system technical issues. The smart grid design aims to provide overall power system monitoring, create protection and control strategies to maintain system performance, stability and security. This dissertation contributed to the development of a unique and novel smart grid test-bed laboratory with integrated monitoring, protection and control systems. This test-bed was used as a platform to test the smart grid operational ideas developed here. The implementation of this system in the real-time software creates an environment for studying, implementing and verifying novel control and protection schemes developed in this dissertation. Phasor measurement techniques were developed using the available Data Acquisition (DAQ) devices in order to monitor all points in the power system in real time. This provides a practical view of system parameter changes, system abnormal conditions and its stability and security information system. These developments provide valuable measurements for technical power system operators in the energy control centers. Phasor Measurement technology is an excellent solution for improving system planning, operation and energy trading in addition to enabling advanced applications in Wide Area Monitoring, Protection and Control (WAMPAC). Moreover, a virtual protection system was developed and implemented in the smart grid laboratory with integrated functionality for wide area applications. Experiments and procedures were developed in the system in order to detect the system abnormal conditions and apply proper remedies to heal the system. A design for DC microgrid was developed to integrate it to the AC system with appropriate control capability. This system represents realistic hybrid AC/DC microgrids connectivity to the AC side to study the use of such architecture in system operation to help remedy system abnormal conditions. In addition, this dissertation explored the challenges and feasibility of the implementation of real-time system analysis features in order to monitor the system security and stability measures. These indices are measured experimentally during the operation of the developed hybrid AC/DC microgrids. Furthermore, a real-time optimal power flow system was implemented to optimally manage the power sharing between AC generators and DC side resources. A study relating to real-time energy management algorithm in hybrid microgrids was performed to evaluate the effects of using energy storage resources and their use in mitigating heavy load impacts on system stability and operational security.