Research Professor at KIAST and Senior Researcher at Seoul National University
E-mail: hanakim@kaist.ac.krCalculating the efficiency based on the cost function.
Using R and Python to deal with Big Data
Using R and Stata
Using R to analyze the unstructured or structured data
I taught a microeconomics class for first year graduate students.
As a research team leader, I taught the behavioral economics as well as guided a few Ph.D students and led Master students to graduate.
I wrote 2 articles as the first author in SCI journals and participated 3 SCI journal articles.
I organized the English Camp for from the elemantary school students.
The role of platform as an information mediator has been becoming more vital by satisfying buyers’ needs for a reasonable purchase and sellers’ need for more exposure to buyers within the copious information flood. For the platform service provider, increasing the network externality is important to induce both sides while platforms can cause sellers to invest more and create severe competition among sellers, which take a toll on sellers’ surplus. Therefore, this study investigates whether platforms yield benefits for sellers as the platform matures, securing the network externality. Thus, this study divides the seller side industry into 3 periods based on the level of platform maturation. The efficiency in each period is measured using stochastic frontier analysis and efficiencies of each period are compared using meta-frontier analysis. The results show the overall industry efficiency improves with securing the network externality as the platform matures. However, if the individual firm is resistant to innovation, the firm’s efficiency might not be far behind compared to the firm which led the innovation.
Meta-frontier Analysis and Big data analysis on customers preference and industry pattern for a firms' optimal strategy as the innovation diffusion
Analyzing the kick-off point strategy for the country and firms
Mainly focusing on the research related to Public Private Partinership