As of the end of May 2021, more than 170 million people worldwide were infected with COVID-19, with the total death toll exceeding 3.7 million. The COVID-19 pandemic and the demand for physical distancing and social isolation have highlighted digital financial services (DFS) as a typical...

This paper aims to examine how two recent external shocks-the Covid-19 pandemic and 5G services-are transforming online shopping submarkets in Korea by estimating the effects of these two shocks on mobile shopping sales and conversion, which refers to substitution for shopping over fixed...

The author derives the probability that price discrimination improves social welfare, using a simple model of third-degree price discrimination assuming two independent linear demands. The probability that price discrimination raises social welfare increases as the preferences or incomes of...

Since 1995, four presidents have granted six traffic violation pardons in Korea, and 24.6 million individuals have been the beneficiaries of these pardons. The objective of this paper is to explore how costly traffic violation pardons are by finding out the effects of traffic violation pardons...

<italic>Abstract:</italic> The author derives the probability that price discrimination improves social welfare, using a simple model of third-degree price discrimination assuming two independent linear demands. The probability that price discrimination raises social welfare increases as the preferences or...

In the mid 1990s Mongolia has introduced competition in the telecommunications market by deregulating it and opening up its mobile communications market to foreign direct investments. Since this policy reform, mobile service penetration has grown fast, recently exceeding 100 % penetration rate...

This study explores the determinants of customer loyalty in the Korean mobile telecommunications market with the emphasis on customer satisfaction and switching costs as major predictors of customer loyalty. South Korea has now become one of the world's most leading mobile service markets with...

In a cluster market, many related and unrelated products or services are sold. Examples of cluster markets are Tesco, Sears, Carrefour, Walmart, JCPenny, and Meijer. Because of certain unique characteristics of cluster markets, studies of cluster market definition have been very scant. This...

This paper sets up a microeconomics model to analyze the market outcomes of two-part tariffs and three-part tariffs. Specifically, this paper compare the market outcomes of a single two-part tariffs to a single three-part tariffs under the assumptions that the market structure is monopolistic,...