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1by Ku, Hyejin“...We examine worker effort as a potential margin of adjustment to a minimum wage hike using unique data on piece rate workers who perform a homogenous task and...”
01.06.2020
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2“...Does leave-taking matter for young workers' careers? If so, why? We propose the competition effect - relative leave status of workers affecting their relative...”
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3“...Corporate credit rating assessment is one of the crucial problems of credit risk management; it will help the financial institutions and government decide...”
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4“...Abstract This paper studies the impact of air pollution spillover from China to South Korea. To isolate the effects of cross-border pollution spillover from...”
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5“...This paper studies the effectiveness of estimating credit rating transition matrices using sequence-based clustering on historical credit rating sequences. The...”
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6“...This article provides a simple model for pricing and hedging options in the presence of jumps and liquidity costs. In the article, liquidity risk is modelled...”
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7“...This paper presents an experiment investigating what cultural and institutional factors underlying a society might render its members more or less tolerant of...”
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8by Eksi, Zehra Ku, Hyejin“...This paper studies portfolio optimization problems in a market with partial information and price impact. We consider a large investor with an objective of...”
edited by Stachurski, A Ogryczak
Published in Mathematical methods of operations research (Heidelberg, Germany) (01.12.2017)
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9by Artzner, Philippe Artzner, Philippe Delbaen, Freddy Delbaen, Freddy Eber, Jean-Marc Eber, Jean-Marc Heath, David Heath, David Ku, Hyejin Ku, Hyejin Published in Annals of operations research (01.07.2007)“...Starting with a time-0 coherent risk measure defined for “value processes”, we also define risk measurement processes. Two other constructions of measurement...”
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10“...The language barrier – the fact that different countries have different native languages – has been documented in numerous studies as reducing international...”
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11“...This paper studies barrier options which are chained together, each with payoff contingent on curved barriers. When the underlying asset price hits a primary...”
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12by Ku, Hyejin Published in Stochastics (Abingdon, Eng. : 2005) (01.06.2011)“...In this paper, we derive new expectation representations of coherent multiperiod risk measures. A special feature of our representation is that it requires the...”
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13by Jun, Doobae Ku, Hyejin Published in The North American journal of economics and finance (01.07.2015)“...•The hedging problem for chained barrier options is studied.•Static strike-spread hedge portfolios are proposed in the Black–Scholes model.•The simulation...”
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14by Jun, Doobae Jun, Doobae Ku, Hyejin Ku, Hyejin Published in Review of derivatives research (01.07.2013)“...This paper concerns barrier options of American type where the underlying asset price is monitored for barrier hits during a part of the option’s lifetime...”
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15“...The effect of inequality on economic growth and efficiency is often debated. Our study investigates a behavioral phenomenon through which inequality might have...”
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16“...► This study provides discrete time pricing and hedging strategy in a market with liquidity cost. ► It gives more realistic discrete hedging strategy in an...”
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17by Ku, Hyejin Published in Journal of development economics (01.06.2019)“...This paper studies a fair trade program in which consumers provide a wage subsidy (bonus) to piece-rate tomato pickers. The total subsidy—determined by sales...”
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18by Ku, Hyejin Published in Applied mathematical finance. (01.06.2006)“...This paper concerns questions related to the regulation of liquidity risk, and proposes a definition of an acceptable portfolio. Because the concern is with...”
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19“...In this paper, we provide a definition of Pareto equilibrium in terms of risk measures, and present necessary and sufficient conditions for equilibrium in a...”