• Environmental and Resource Economics Review
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• v.14 no.3
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• pp.699-728
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• 2005

This article is basically an extension of Barten(1993), Brown et al. (1995), Holt and Bishop's(2002) price formation system. A new dynamic price formation system is attempted considering full rationality of the consumers' side. The underlying idea of the new dynamic price formation system is that consumers are rational and farsighted and thus consider past and future consumptions in addition to current consumption to accept the prices traders called. In an empirical application, the U.S. commercial fish demand data are particularly interesting to this analysis in which the species are over fished, including many of the most valuable species. Especially, the grouper-snapper complex are under management jurisdiction of the National Marine Fisheries Council. In the empirical section, it shows how to adapt the model to estimate the marginal values to consumers of commercial fisheries. Since it is conceived of regulations as inducing movements along the marginal value curves, it is of growing importance to regional and national policy makers who are confronted with competing claims on diminishing fish stocks by commercial fisheries interests. It performs well and shows the plausible signs and magnitudes of price flexibilities and interaction among species. It further contributes to the general methodology of applied economics.

• 한국신재생에너지학회:학술대회논문집
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• 2009.06a
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• pp.857-860
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• 2009

This report examines the economic feasibility of a commercial 50,000 barrel per day direct/indirect coal liquefaction (DCL/ICL) facility to produce commercial-grade diesel and naphtha liquids from medium-sulfur bituminous coal. The scope of the study includes capital and operating cost estimates, sensitivity analysis and a comparative financial analysis. Based on plant capacity of 50,000BPD, employing Illinois #6 bituminous coal as feed coal the total capital cost appeared $3,994,858,000(DCL) and $4,942,976,000(ICL). Also, the internal rate of return of DCL/ICL appeared 13.27% and 12.68% on the base condition. In this case, coal price and sale price of products were the most influence factors. And ICL's payback period(6.8 years) was longer than DCL's (6.6 years). According to sensitivity analyses, the important factors on DCL/ICL processes were product sale price, feed coal price and the capital cost in order.

• Journal of Cadastre & Land InformatiX
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• v.50 no.1
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• pp.87-105
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• 2020

The government is trying to secure reliability by raising the accuracy, objectivity, and transparency of the official price by promoting the reliability improvement plan of the official price and increasing the realization rate, but the Realization rate of Publicly Notified Individual Land Price is showing a big difference because the current market price is not fully reflected in the official price. Therefore, this study collected the actual transaction price reported to the RTMS in Wansan-gu, Jeonju, Jeollabuk-do and the individual official price of the KRAS and calculated the realization rate of publicly notified individual Land Price. SPSS 25.0 program was used for the empirical analysis of this study. The Dependent Variable was the realization rate of publicly notified individual Land Price, and Independent Variables, was six land characteristics items were selected, one-way ANOVA was conducted and post-test was conducted by Scheffe method. As a result of the analysis, average difference in realization rate of publicly notified individual Land Price was found in Residential areas, Commercial areas, and Farmland, Public land and Residential and commercia, Residential and Forest. Especially, it was found that the price of commercial area is higher than that of residential area and green area, and the price is less reflected in individual official land price.

• Ocean and Polar Research
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• v.36 no.4
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• pp.505-514
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• 2014

The development of deep seabed manganese nodules has been carried out with the aim of commercial development in 2023. It is important to forecast the price of the four metals (copper, nickel, cobalt, and manganese) extracted from manganese nodules because price change is a criterion for investment decision. The main purpose of the study is to forecast the price of four metals using the ARIMA model and VAR model, and calculate the MAPE to compare a goodness-of-fit between the two models. The estimated results of the two models reveal statistical significance and are in keeping with economic theory. The results of MAPE for goodness-of-fit show that the VAR model is between 0.1 and 0.2, and the ARIMA model is between 0.4 and 0.6. That is, the VAR model is better than the ARIMA model in forecasting changes in the price of metals.

• The Transactions of the Korean Institute of Electrical Engineers A
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• v.50 no.12
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• pp.568-574
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• 2001

The variations of real time electric power price in competitive electricity markets have influence on electric power demands of the consumers. The effects of the consumers for electric power price can be expressed the price elasticity coefficient of the power demand as a measurement. Residential, commercial, and industrial consumers with different characteristics cause the different price elasticity of the power demand due to changing the pattern of consumption. It is necessary that the effects of electric power demands as a function of elasticity coefficient for each loads should be analyzed in Korea which is processing deregulated electric market. Therefore, this paper calculate the elasticity coefficient of each loads and analysis the effects of electric power demands as a function of elasticity coefficient of inflexible and flexible consumers in competitive electricity market.

• Journal of the Korean Society of Food Culture
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• v.22 no.6
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• pp.748-756
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• 2007

The purposes of this study were to analyze importance and performance for coffee quality attributes based on customers according to their consumption types; and provided ideas and marketing strategies to increase sales through IPAs (Importance-Performance Analysis). University students in Incheon were conducted a survey from March 13, 2007 to March 31, 2007. As for a quality attribute with the highest importance, the survey showed 'price' was important for ${\ulcorner}$vending machine coffee${\lrcorner}$, and 'taste' was important for ${\ulcorner}$commercial coffee${\lrcorner}$, and ${\ulcorner}$coffee house coffee${\lrcorner}$. And 'thirst relief' was found to have the lowest importance for three types of coffee. As for a quality attributes with the highest performance, the survey showed 'taste' was important for ${\ulcorner}$coffee house coffee${\lrcorner}$ 'price' was important for ${\ulcorner}$vending machine coffee${\lrcorner}$; and 'period of circulation' was important for ${\ulcorner}$commercial coffee${\lrcorner}$. IPA results for coffee quality attributes also showed quality attributes that should be improved quickly for each type of coffee: 'hygiene', 'safety', 'period of circulation', and 'package' were for ${\ulcorner}$vending machine coffee${\lrcorner}$; 'price' and 'freshness' were for ${\ulcorner}$commercial coffee${\lrcorner}$; and 'price' and 'period of circulation' were for ${\ulcorner}$coffee house coffee${\lrcorner}$.

• Management & Information Systems Review
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• v.25
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• pp.321-337
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• 2008

The house price rise suddenly is not only Economic stability but economic, mental state of a heavy burden to people. This paper is a house finance environment analyzed in this research about the rise factor of the house price and the result to present the plan to the natural disposition. The financial institute has an influence on the disguised demand extension of the house and The mortgage Lending in commercial Banks with the earnings as the stability high than the industry loaning. A house finance environment changes and will go from economic factor of the variety of the life style, the housing conditional according to the income level, a children education condition, and the population structure many this little. The disposition of the house need changes according to this and will have an influence on the house price. Necessary for a house market environment house policy of the market need which the consistency reflects so that we are suitable and is desired.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.38
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• pp.47-68
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• 2008

I have observed the validity of open-offer from a point of European contract law in comparison with International Trade Law in this paper. Generally we know that an offer is an expression of willingness bo be bound to the contract. In English law if there are no intention it will be considered such as circulation of price lists or catalogues. As for French law these activities could be considered as an offer. However German law is closer to English law as to an offer. A contract which does not ascertained price is open-price terms and it can be applied not only for general commercial contracts but also for franchise or for distributorship agreements especially in Europe. When open-price terms applied to reserve a exclusive right to the contract the validity of contract can be a serious matter between principals. In English law an offer must be sufficiently complete to be capable of acceptaqnce. English law does not require that price terms should be indicated on offer. English law allow a open-price terms in the contract. In French law a contract will be valid in the absense of a price which is either determined or objectively determinable. A price by the market price of similar products is not enough to be valid offer. It should be recognized and accepted objectively by third parties. French law require that price terms should be indicated on offer. Open-price terms are not enough to be an effective offer. However German law shows more flexible than French law. In German law if the price is not fixed in the contract there are four ways to determine it. The seller may determine the price by the time of deliver. By reason of thess backgrounds I have made comparison with European contract law and International trade law on the validity of open-price offer in this paper. It seems that we are not familiar with open-price terms although franchise contract or special terms of contract have been increased in these days. So I hope this paper will be helpful to show a new point of view.

• Korean Chemical Engineering Research
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• v.47 no.1
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• pp.127-132
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• 2009

This report examines the economic feasibility of a commercial 50,000 barrel per day direct coal liquefaction(DCL) facility to produce commercial-grade diesel and naphtha liquids from medium-sulfur bituminous coal. The scope of the study includes capital and operating cost estimates, sensitivity analysis and a comparative financial analysis. Based on plant capacity of 50,000BPD, employing Illinois #6 bituminous coal as feed coal the total capital cost appeared $3,994,858,000. Also, the internal rate of return of DCL appeared 6.60% on the base condition. In this case, coal price and sale price of products were the most influence factors. And DCL's payback period demanded a long time(12.3 years), because of high coal price at the present time. According to sensitivity analyses, the important factors on DCL processes were product sale price, feed coal price and the capital cost in order.

• International Journal of Computer Science & Network Security
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• v.21 no.4
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• pp.65-74
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• 2021

The rapid change in gold price is an issue of concern in the global economy and financial markets. Gold has been used as a means for trading and transaction around the world for long period of time and it plays an integral role in monetary, business, commercial and financial activities. More importantly, it is used as economic measure for the global economy and will continue to play an important economic vital role - both locally and globally. There has been an explosive growth in demand for efficient and effective scheme to predict gold price due its volatility and fluctuation. Hence, there is need for the development of gold price prediction scheme to assist and support investors, marketers, and financial institutions in making effective economic and monetary decisions. This paper primarily proposed an intelligent based system for predicting and characterizing the gold market trend. The simulation result shows that the proposed intelligent gold price scheme has been able to predict the gold price with high accuracy and precision, and ultimately it has significantly reduced the prediction error when compared to baseline neural network (NN).