The Korean economy severely suffered from the Asian financial crisis, and is well known for rapid recovery in the years following. However, the recovery was mainly due to successful restructuring by a limited number of large-sized enterprises (LSEs). The small and medium sized enterprises (SMEs)...

Today, despite the needs of more credible valuation models in defense research and development (R&D), defense decision makers mainly focus on previous cost and NPV-based approaches to evaluate them. Defense R&D projects should be considered as a sequential compound real option due to its...

The government-driven knowledge network of the hydrogen energy sector in Korea provides a good case study for an R&D network incorporating necessary building blocks; it can be regarded as a precursor to an emerging sector even before business relationships form, especially one which involves...

Patents are typically characterized as assets of great values. Nevertheless, there are many patents that are actually never used. In this article, we claim that there is a relationship between the duration of patents and the characteristics of the underlying invention. From the viewpoint of...

In this study we propose a mathematical definition of the consumption efficiency of multi-attribute products in the price–quality space. A new model, the discrete Range Adjusted Measure (RAM) model, is suggested as an empirical tool to measure the level of consumption efficiency. We further...

This paper examines the development pattern of the DEA (Data Envelopment Analysis) research field using Social Network Analysis. Nine stylized facts are verified: it is shown that the distribution of research performance is highly skewed, satisfying a power law, and that collaborative research...

We empirically analyze both free and paid products on the top 100 Free and Grossing charts in the Korea App Store using Weibull parametric survival analysis on the product level. The findings are as follows: First, influences of ranking, customer ratings, and contents size on product survival...

We propose a competitiveness index for the electricity industry based on efficiency, stability, and growth factors identified from previous studies subject to data accessibility. These are then weighted appropriately through the application of the analytical hierarchy process. This index is an...

Shadow price is one of the most important pieces of information in environmental decision making. Two different approaches—namely, economic and engineering—have been applied to obtain the shadow price of undesirable outputs, while using different methodological backgrounds and perspectives....