Patent pools,litigation, and innovation

This article analyzes patent pools and their effects on litigation incentives, overall royalty rates, and social welfare when patent rights are probabilistic and can be invalidated in court. With probabilistic patents, the license fees reflect the strength of the patents. We show that patent pools of complementary patents can be used to discourage infringement by depriving potential licensees of the ability to selectively challenge patents and making them committed to a proposition of all‐or‐nothing in patent litigation. If patents are sufficiently weak, patent pools with complementary patents reduce social welfare as they charge higher licensing fees and chill subsequent innovation incentives.     

Indifference Pricing of a GLWB Option in Variable Annuities

We investigate the valuation problem of variable annuities with guaranteed lifelong/lifetime withdrawal benefit (GLWB) options, which give the policyholder the right to withdraw a specified amount as long as he or she lives, regardless of the performance of the investment. We assume the static approach that the policyholder’s withdrawal rate is a constant throughout the life of the contract. We apply the principle of equivalent utility to find the indifference price for a variable annuity with a GLWB contract with an equity-indexed death benefit. Using an exponential utility function, Hamilton-Jacobi-Bellman (HJB) type partial differential equations (PDEs) are derived for the pricing functions. We first assume the mortality is deterministic, and the pricing PDE is solved numerically using a finite difference method. The effects of various parameters are investigated, including the age at inception of the policyholder, withdrawal rate, risk-free rate, and volatility of the underlying asset. We also consider a roll-up option and analyze the effect of delaying the start of the withdrawals. Another pricing PDE is derived with a stochastic mortality, when the force of mortality is modeled with a stochastic differential equation. A finite difference method is used again to solve the pricing PDE numerically, and the sensitivities of the GLWB contracts with respect to the withdrawal rate and the risk-free rate are explored.     

Relationships among consumer vanity,gender, brand sensitivity,brand consciousness and private self‐consciousness

The purpose of this study was to examine relationships among consumer vanity, gender, brand sensitivity, brand consciousness and private self‐consciousness within a context of social comparison theory. The four dimensions of consumer vanity are concern for and positive view of physical appearance and concern for and positive view of achievement. Participants were 400 college students (284 women; 116 men). Participants above the median in three of the four dimensions of vanity (except vanity achievement view) were more sensitive to and more conscious of brand names. Participants above (vs. below) the median in vanity achievement view scored higher on private self‐consciousness. Women scored higher on brand sensitivity, brand consciousness and private self‐consciousness than men. There was a significant correlation between brand sensitivity and brand consciousness. Results support the notion that consumers’ decisions, especially regarding brand names, may be guided by vanity‐related concerns and views.     

The political economy of defense procurement and acquisition: The case of South Korean ministry of defense

South Korea faces growing problems in the area of productivity and competitiveness throughout its economy. These problems are also present in the economies of the armed forces. The purpose of this paper is to present methods of improving the productivity of the South Korean Ministry of Defense's acquisition and procurement processes. It also attempts to mention the South Korean defense environment including defense industry after the Second World War, to point out the problems of Korean Fighter Program (KFP) as a case study, to explain concepts and principles of Total Quality Management, which is a management philosophy and methods, and to provide with the possible solutions of its defense acquisition and procurement represented as KFP.     

Uncertainty in foreign policy making: A Bayesian game analysis of Korea

Bayesian games are used to analyze situations where at least one player is uncertain about the other's preferences. For the past decade or so, the Bayesian models have been rigorously applied to various aspects of international relations involving uncertainty. These models have contributed to our understanding of international relations by uncovering complicated strategic interactions through deductive reasoning and by generating many empirically testable hypotheses. Apart from these efforts for general theory developments, however, scholars rarely applied Bayesian models to analyze real‐world international events, although many of them involve situations where one or more players are uncertain about the other's preferences. Some of these events are interesting and important in their own right, given their potential impact on regional security and the amount of attention paid by scholars and politicians alike. Therefore, these cases warrant independent studies utilizing Bayesian models. In this paper, we have developed two Bayesian models for the changing relationships North Korea has with South Korea and the United States. We also discuss another interesting aspect of North‐South Korea‐United States relations where North Korea is simultaneously playing similar, but separate, games with South Korea and the United States.     

The French commitment to European monetary integration: A review of the two EMS crises (1981–83, 1992–93)

This paper focuses on the process of exchange rate management during the two European Monetary System(EMS) crises, in 1981–83 and 1992–93, and examines the factors which led the French governments to adhere to the EMS. France's strong franc (franc fort) policy is a useful test case for maintaining national commitment to European monetary integration. The origin of the franc fort policy can be traced back to the exchange rate crisis of 1981–83. By actively supporting European institutions and emphasizing the emergence of a strong and united European common currency, France discovered the way to bolster confidence in her economic policy. Beyond this focal point, political justification and economic rationality became mutually reinforcing, configuring French national preference in European monetary integration. The response of the French government to the EMS crisis of 1992–93 was more consistent compared to the response to the 1981–83 crisis, and reflected the accumulation of loyalty to European monetary integration. This loyalty, however, was made neither from purely economic calculation nor out of normative commitment French European monetary policy reflected the interaction between domestic politics and European monetary integration. The French commitment to the franc fort also was based on domestic political bases such as the existence of a core policy group, a centralized policy‐making structure, and an issue linkage between the franc fort and European integration.     

Factors affecting attitudes and behavioural intention towards social networking advertising: a case of Facebook users in South Korea

This study examined factors (e.g., ad values and social networking advertising characteristics) influencing consumers' attitudes and behavioural intention towards three types of social networking advertising (SNA) on Facebook – home page ad, social impression ad, and organic impression ad. Findings demonstrate that peer influence had the most significant impacts on attitude and behavioural intention across all types of SNA. The significant interaction term of invasiveness and privacy concern indicates that both attitude and behavioural intention were diminished, particularly when perceived invasiveness and privacy concern were high simultaneously. In addition, results suggest that attitudes towards the ad played a mediating role between SNA characteristics and behavioural intention. Lastly, among the types of SNA, consumers preferred organic impression ads that featured friends' names on their newsfeed more than paid ads located on the sidebar of their Facebook pages.     

Cross redundancy and sensitivity in DEA models

Data envelopment analysis (DEA) measures the efficiency of each decision making unit (DMU) by maximizing the ratio of virtual output to virtual input with the constraint that the ratio does not exceed one for each DMU. In the case that one output variable has a linear dependence (conic dependence, to be precise) with the other output variables, it can be hypothesized that the addition or deletion of such an output variable would not change the efficiency estimates. This is also the case for input variables. However, in the case that a certain set of input and output variables is linearly dependent, the effect of such a dependency on DEA is not clear. In this paper, we call such a dependency a cross redundancy and examine the effect of a cross redundancy on DEA. We prove that the addition or deletion of a cross-redundant variable does not affect the efficiency estimates yielded by the CCR or BCC models. Furthermore, we present a sensitivity analysis to examine the effect of an imperfect cross redundancy on DEA by using accounting data obtained from United States exchange-listed companies.