본 연구는 한국에서 시행 중인 탄소배출권 거래제도가 탄소중립을 달 성하는데 효과적으로 기여하고 효율적으로 작동할 수 있도록 정책적 시 사점을 제공하고자 한다. 이를 위해서, 탄소배출권 가격과 전산업생산지 수의 관계를 분석하였다. 즉, 탄소배출권 가격과 전산업생산지수의 선형 및 비선형 관계를 고려하여 경제학적 모형을 통해 추정 및 분석을 진행 하였다. 분석 방식은 구조변화를 반영한 방식과 임계값(문턱값)을 반영하 는 방식으로 나누어 모형을 구축하고 추정하였다. 그 결과, 한국의 탄소 배출권 가격과 전산업생산지수는 추정한 모형에서 비선형적 관계가 포착 되었다. 이러한 결과는 한국에서 시행 중인 탄소배출권 거래제도가 효율 적으로 작동할 수 있도록 추가적인 정책이 필요함을 시사한다. 예를 들 어, 산업 분야에서 저탄소 공정으로의 전환(또는 저탄소 경제로의 전환) 이 완전히 이루어지지 않은 현실을 고려할 때, 여전히 경제가 성장하는 상황에서 비선형 관계가 포착된다는 것은 탄소배출권 가격이 적정한 수 준을 유지하지 못하고 지속적으로 하락하는 추세를 나타낸다는 것이기 때문이다. 따라서, 탄소배출권 거래제도의 본래 취지인 탄소배출량의 감 축에 기여할 수 있도록 적정한 탄소배출권 가격이 배출권 거래제도하에 서 유지되도록 하는 정책을 고려해야 한다.

This study was conducted to determine the efficiency of the distribution process of the abalone industry, that is, whether there is market dominance. In addition, it was intended to find out whether there is an asymmetric price transfer phenomenon between the distribution stage of the abalone industry. The results of this study are summarized as follows. First, the asymmetric price transition effect on the abalone price between producer and wholesale market was found to be positive. It means that the distribution structure is incomplete between the producer and the wholesale market and the abalone market is operating inefficiently. Second, as a result of estimating the market power between the producer and the wholesale market, the market power coefficient between the producer and the Hanam wholesale market, and the producer and the Incheon wholesale market were 0.0618 and 0.0735. Summarizing the analysis results, the abalone market has an asymmetric price transition between producer and wholesale markets, but the market dominance coefficient is relatively low. These results suggest that the asymmetry of price transition is mainly caused by market dominance, but can also be caused by other factors such as information asymmetry. In the future, in addition to the market dominance of the abalone market, it is judged that research on factors related to the asymmetry of price transition is necessary.

The study was aimed to investigate the operational meal costs by kindergarten size in Seoul and to analyze recognition for optimal meal prices. A survey (31.6% recovery rate) was conducted on all kindergartens (779 kindergartens) in Seoul on April 2021 using descriptive analysis, t-test, and dispersion method. A price sensitivity measurement (psm) method was used to determine optimal meal prices. Result showed an average food cost for kindergartens of 2,647 won, an average labor cost of 605 won, an average operating cost of 146 won, and the total meal cost of 3,506 won. Total meal cost decreased with increasing kindergarten size (p<0.001). On the other hand, kindergartens with more students decreased the ratio of food cost to total meal cost, and operating cost and labor costs (p<0.001) increased. The optimal price of kindergarten operators' meal cost (OPP) was KRW 3,673. Furthermore, the analysis showed the sensitivity of operators' meal costs to kindergarten size was insignificant.

The purpose of this study was to analyze the operators' perception of the allowable price range and the optimal price of kindergarten meals by using the PSM (price sensitivity measurement) technique and provide basic data on calculating kindergarten meal costs reflecting realistic meals. From April to May 2021, 779 kindergartens in Seoul were surveyed, based on 246 (31.6%) of the respondents. According to the survey, kindergarteners spent 3,506 won for meals on average, followed by 3,822 won for kindergarten attached to elementary school, 3,316 won for public kindergartens, and 2,896 won for private kindergartens (p<0.001). The allowed price range for the kindergarten meal service workers was estimated at 3,447~3854 won, 3,447 won for PMC (Point of Marginal Cheapness), and 3,854 won for PME (Point of Marginal Expensiveness). The appropriate cost of the kindergarten meal service provider was 3,950 won for kindergartens attached to elementary school, 3,425 won for public kindergartens, and 3,546 won for private kindergartens.

The purpose of this study was to investigate the perception of the quality of school meals by parents of kindergarten children in Seoul, analyze the acceptance price and the optimal school meal cost using PSM (price sensitivity measurement) techniques, and provide basic data for improving the quality of kindergarten meals. The survey was conducted using descriptive statistics and PSM analysis of the responses of 1,272 parents of 779 kindergarten children belonging to the Seoul Metropolitan Office of Education from April to May 2021 and prior research analysis related to kindergarten meals. 74.1% of the parents surveyed were women, with 61% of children attending kindergartens attached to elementary schools, followed by private kindergartens (28.9%) and public kindergartens (10.1%). According to a study of the quality of meals, private kindergarten parents are highly satisfied with all the quality attributes of meals, such as “sanitation of dining environment” and “nutritionally balanced food” (p<0.001, p<0.01). The analysis of the acceptance price range and the optimal price for school meals showed that there was no significant variation based on the type of kindergarten establishment, with parents' acceptance price range ranging from 3,596 won to 4,454 won with an optimal price of 3,948 won.

The purpose of this study is to identify the leading price between Jeju and Wando’s oliver flounder producer price and to analyze the dynamic effect of the regional producer price using the panel VAR model. In the process of analysis, it was confirmed that there are unit roots in the monthly data of Jeju and Wando’s oliver flounder producer price. So, in order to avoid spurious regression, the rate change of producer price which carries out log difference was used in the analysis. As a result of the analysis, first, the panel Granger causality test showed that the influence of the change rate of producer price in oliver flounder in Jeju was slightly larger than that in Wando, but it was found that each region all leads the change rate of the producer price in oliver flounder. Second, the panel VAR estimation showed that the rate change of producer price in Jeju and Wando a month ago had a statistically significant effect on the change rate of producer price of each region. Third, the impulse response analysis indicated that other regions are affected a little more than the same region in case of the occurrence of the impact on the error terms of the change rate of produce price in Jeju and Wando oliver flounder. Fourth, the variance decomposition analysis showed that the change rate of producer price in the two regions was higher explained by Jeju compared to Wando. In conclusion, it is expected that the above results can not only be useful as basic data for the stabilization of oliver flounder producer price and the establishment of policies for easing volatility but can also help the oliver flounder industry operate its business.

The aim of this study is to analyze the relationship between international oil price as a fuel cost in overseas fisheries and skipjack tuna price as a part of main products in overseas fisheries using monthly time series data from 2008 to 2017. The study also tried to analyze the change of fishing profits by fuel cost. For a time series analysis, this study conducted both the unit-root test for stability of data and the Johansen cointegration test for long-term equilibrium relations among variables. In addition, it used not only the Granger causality test to examine interactions among variables, but also the Vector Auto Regressive (VAR) model to estimate statistical impacts among variables used in the model. Results of this study are as follows. First, each data on variables was not found to be stationary from the ADF unit-root test and long-term equilibrium relations among variables were not found from a Johansen cointegration test. Second, the Granger causality test showed that the international oil prices would directly cause changes in skipjack tuna prices. Third, the VAR model indicated that the posterior t-2 period change of international oil price would have an statistically significant effect on changes of skipjack tuna prices. Finally, fishing profits from skipjack would be decreased by 0.06% if the fuel cost increases by 1%.

This study conducted to predict the stock market prices based on the assumption that internet news articles might have an impact and effect on the rise and fall of stock market prices. The internet news articles were tested to evaluate the accuracy by comparing predicted values of the actual stock index and the forecasting models of the companies. This paper collected stock news from the internet, and analyzed and identified the relationship with the stock price index. Since the internet news contents consist mainly of unstructured texts, this study used text mining technique and multiple regression analysis technique to analyze news articles. A company H as a representative automobile manufacturing company was selected, and prediction models for the stock price index of company H was presented. Thus two prediction models for forecasting the upturn and decline of H stock index is derived and presented. Among the two prediction models, the error value of the prediction model ① is low, and so the prediction performance of the model ① is relatively better than that of the prediction model ②. As the further research, if the contents of this study are supplemented by real artificial intelligent investment decision system and applied to real investment, more practical research results will be able to be developed.

In this paper, we investigate if the increasing Chonsei price is directly affected by housing lease financing. We use monthly Chonsei price, buy and sell price, industry price index, liquidity aggregates of finance institutions (Lf), lease guarantee ratio, and mortgage rate, and they are from January, 2008 to August, 2013. As a result, we find that all variables are non-stationary and those variables have co-integration relationship to one another. The result of the Granger causality shows that there exist exogenous relationships in industry price index, Lf, mortgage rate, lease guarantee ratio, Chonsei price, and buy and sell price. When we implement the VECM, the Chonsei price response permanently positive if one unit of standard deviation of the lease guarantee ratio increases. The explanation ratio of the Chonsei price is influenced by the rank of Chonsei price itself, mortgage rate, lease guarantee ratio, industrial production index, Lf, and buy and sell price. Therefore, we can conclude that housing lease finance has a direct influence on the Chonsei price.

This study analyzed the impact of FTA tariff elimination on the export prices for Norwegian fresh and chilled salmon, of which Korean import has significantly increased since the Korea-EFTA FTA implementation. Korea's fresh and chilled salmon market is almost monopolized by Norway, and Korea's price level is higher than other countries, so it is highly likely that price discrimination occurs. This study theoretically explained that exporters could adjust their prices by market power when tariffs are eliminated in imperfectly competitive markets. And the empirical analysis provided evidence that the exporters have made price adjustments since the FTA took effect, and similar results were found in the relative price comparison with trade statistics and Nasdaq Salmon Index. Therefore, in order to increase consumer welfare in Korean salmon market, it is required to transform the monopolistic market structure into a competitive one.

The purpose of this paper is to find out how each districts(Gu) of Seoul are related based on the apartment price trends. All the data used in this paper comes from a public data sources, Seoul apartments transaction data provided by ‘Ministry of Land Infrastructure and Transport Korea’ and the apartments properties from NAVER’s real estate service. To analyze the similarities between the price trends of each apartments, this study uses FastDTW algorithm which is quite popular in time series analysis domain. After figured out the distance matrix from FastDTW, this study uses Hierarchical Clustering algorithm and Chi-squared test to compare each districts’ relationship. The analysis result shows that which districts in Seoul are similar and which districts are not.

In the business market, prices are typically subject to negotiation between exchange partners and buyers’ perceptions of the relationships with suppliers have a central role for supplier success and for establishing profitable prices (Hinterhuber & Liozu, 2015). Suppliers that seek to achieve price levels above the average market prices of offerings need to convince buyers of a favorable price/quality ratio (Töytäri, Rajala, & Alejandro, 2015). To date, however, research on absolute prices paid by buyers to suppliers, relative prices paid as compared to the average price level in a product category, or exchange partners’ perceptions of prices charged in business relationships remains limited. Extant work on buyer-supplier relationships has most commonly focused on costs rather than prices as economic outcomes of interest (e.g., Cannon & Homburg, 2001; Kalwani & Narayandas, 1995). The purpose of this research is to deepen the understanding of buyers’ price assessments in business relationships. Specifically, this research seeks to further illuminate how relationship inputs provided by suppliers influence buyers’ assessments of the price level charged and their satisfaction with the price/quality ratio provided by the suppliers. The relationship inputs examined include buyers’ perceptions of supplier relationship-specific investments, long-term orientation, and relationship planning. In addition, this research considers two relationship parameters, that is, buyers’ commitment to the supplier and dependence from the supplier. Based on a sample of executives of different buyer firms, this research examines net effects and combinatory effects of the relationship factors on buyers’ evaluations of economic outlay. While the study of net effects offers insights into the effects of single antecedents on the outcomes across a sample of cases, the analysis of combinatory effects delineates (configurations of) antecedents sufficient for bringing about the outcomes of interest (e.g., Leischnig, Henneberg, & Thornton, 2016). Knowledge of these effects helps assess what relationship inputs and what combinations thereof may act as potential remedies for buyers’ price-related resentment in business The findings of this research show alternative configurations of relationship inputs and relationship characteristics sufficient for the two outcomes of interest. In addition, this research shows that individual relationship inputs and characteristics can have opposite effects on the outcomes, depending on how they combine with other antecedent conditions. Moreover, the results of this research reveal that specific antecedent factors differ in terms of causal coreness for the two outcomes of interest. In summary, these findings add to the net effect analysis and provide a more detailed and nuanced understanding of how relationship attributes impact buyers’ price assessments in business relationships.

본 연구에는 경남의 혈통등록우 경매시장 A, B 지역에서 2014년도부터 2015년도에 경매된 한우송아 지 중에서 경매가격이 있는 19,592두의 경매가격자료를 이용하였고 경매가격에 미치는 환경요인 및 요 인별 기여도를 추정하였다. 연구의 결과를 살펴보면 송아지경매가격에 대한 모든 효과에서 고도의 유의 적인 차이(p<0.01)를 나타내었고, 준부분 상관제곱(semi-partial correlation)값을 이용한 요인별 기여 도 분석에서 회귀식의 수정모형 적합도(Adj R-Square)가 0.701로 나타났으며, 성, 경매체중, 출품개월 령, 경매년도, 경매계절 및 경매지역의 준부분상관값은 각각 0.11563, 0.20013, 0.02823, 0.10727, 0.00330 및 0.02963으로 나타났다. 요인별 기여도에서 송아지 체중의 기여도가 가장 높은 것으로 나타 났으며, 성, 경매년도, 경매지역 및 출품개월령 순으로 영향을 미치는 것으로 나타났다. 송아지 생산농 가에서 경매가격을 잘 받기 위해서는 송아지의 발육정도를 측정할 수 있는 체중의 개량 및 적절한 사양 관리가 매우 중요할 것으로 사료된다. 또한 향후에는 개량방향과 맞는 우수한 유전자의 생산 및 확보가 농가 경쟁력 및 소득증대에 이바지할 것으로 사료된다. 송아지경매가격 및 요인별 기여도에 대한 연구 는 아직 많이 부족한 상황으로 더 많은 연구가 이루어져야 할 것으로 사료된다.

The purpose of this study is to assess the effects of outlook project for olive flounder, from the view point of price stabilization, market efficiency, and causality of the prices in different distribution channels. Analytical results show that the volatility of producer price of olive flounder has been significantly mitigated after the implementation of the outlook project. The market efficiency is estimated to be improved after implementing the outlook project although there is an inefficiency on price determination process in some producing regions. The causality test on the producer and wholesale price shows that producing stage leads the wholesale stage in forming the prices. It is found that Jeju leads the flounder price on the size of 500g and 2kg, while Wando leads the price of 1kg size. These estimation result as whole indicate that outlook project for olive flounder has accomplished the intended goals.

본 연구에서는 2009년부터 2011년 까지 6년간 경남지방 도축장에서 도축한 한우 63,388두에 대한 도 축성적 자료를 근거로 하여 한우의 경락단가 결정에서 있어 가장 큰 영향을 미친다고 생각되는 등지방 두께, 등심단면적, 도체중 및 근내지방도가 경락가격에 영향을 미치는 기여도를 분석하기 위하여 최소 제곱 평균법으로 SAS @9.3 Package/PC를 이용하여 분석하였으며, 본 연구의 결과를 요약하면 다음과 같다. 각 요인에 대한 분산분석 즉, 유의성 검정 결과 조사한 형질에 대해 성, 도축계절, 도축년도의 효 과에 대해 고도의 유의성(p<0.01)을 나타내었다. 표현형 상관에서 모든 형질간의 정의상관을 확인 할 수 있었으며 경락단가에 대해서는 근내지방도가 가장 높은 0.70의 정의 상관을 나타내었으며, 총 가격 에서는 경락단가를 제외한 도체형질 중에서 도체중이 0.74로 가장 높은 정의 상관을 나타내었다. 요인 별 기여도 분석에서 경락단가에 대한 근내지방도의 기여도는 95.41%로 가장 높게 나타났고, 총가격에 서도 근내지방도가 52.57%로 가장 높았고 다음으로 도체중이 44.31%로 기여도가 높은 것으로 나타났 다. 이상의 연구결과를 통해 한우의 경락단가, 총가격에 대한 요인별 기여도를 산출해낼 수 있었다. 한 우의 경락단가를 높이기 위해서는 근내지방도 위주의 개량이 적합하고 총가격을 위해서는 도체중까지 고려한 개량 및 사양 방법이 필요할 것으로 사료된다. 본 연구는 분석 결과를 통해 경락단가와 총가격 의 기여도를 고려하여 가장 높은 수익을 얻도록 전략적으로 출하시기를 선택하는데 기초자료로 활용하 고자 하며 각 형질들의 환경요인에 따른 분산분석결과를 통해 한우농가 수입증대를 위한 한우 개량 방 향제시를 위한 기초자료로 활용하고자 한다.

This study aims to analyze causalities among Hairtail prices by distribution channel using a vector autoregressive model. This study applies unit-root test for stability of data, uses Granger causality test to know interaction among Hairtail Prices by distribution channel, and employes the vector autoregressive model to estimate statistical impacts among t-2 period variables used in model. Analyzing results of this study are as follows. First, ADF, PP, and KPSS tests show that the change rate of Hairtail price by distribution channel differentiated by logarithm is stable. Second, a Granger causality test presents that the producer price of Hairtail leads the wholesale price and then the wholesale price leads the consumer price. Third, the vector autoregressive model suggests that the change rate of Hairtail producer price of t-2 period variables statistically, significantly impacts change rates of own, wholesale, and consumer prices at current period. Fourth, the impulse response analysis indicates that impulse responses of the structural shocks with a respectively distribution channel of the Hairtail prices are relatively more powerful in own distribution channel than in other distribution channels. Fifth, a forecast error variance decomposition of the Hairtail prices points out that the own price has relatively more powerful influence than other prices.

Many measurement methods for understanding consumers’ acceptable price range have been developed. Among these, Price Sensitivity Meter (PSM) is one of the most popular. It has been regarded as a convenient research method because of the ease of data collection and data processing. In particular, PSM requires only four questions to determine the price range. Nevertheless, it also has some problems from a theoretical viewpoint. The purpose of the present research is to develop a new price research method for measuring consumers’ acceptable price range. In particular, applying survival analysis to data prepared for PSM, Japanese consumers’ price acceptance ranges for several categories were estimated.

본 연구에서는 2007년부터 2012년 초까지 최저 수출가격제 도가 베트남의 쌀 수출시장과 베트남 국내시장에 미치는 영향 을 분석하였다. 그동안 베트남의 쌀 관련 수출정책은 베트남 국내뿐만 아니라 수출시장에서도 중요한 역할을 했지만, 이에 대한 분석은 거의 이루어지지 않았다. 특히, 2001년부터 시행 된 최저 수출가격제도는 베트남의 식량안보와 자국 내 가격 안정 등에 미치는 영향이 매우 컸음에도 이에 대한 연구는 거 의 없었다. 이 논문은 베트남의 쌀 관련 수출정책, 그 가운데에 서도 최저 수출가격제도의 효과를 분석하는 데 초점을 두었다. 이 논문에서는 베트남 주요 쌀 생산 지역의 쌀 가격과 월 별 쌀 수출가격, 수출량과 최저수출가격을 비교하고 실증 분 석을 통해 베트남 쌀시장의 최저수출가격제도의 정책 효과를 분석하였다. 분석 결과, 최저 수출가격제도는 수출 물량을 제 한하고 국내 공급 물량을 증가시킴으로써 국내시장 가격을 안 정시키는 데 기여한 것으로 나타났다. 특히, 세계 쌀 가격이 크게 폭등하던 2008년에 베트남 국내 가격을 안정시키는 데 가장 효과가 컸던 것으로 나타났다. 이 정책을 통해 베트남 정부는 국제 쌀 가격이 폭등하던 시기에 자국 내 소비자를 보 호할 수 있었다. 최저 수출가격제도로 인한 쌀 수출 감소와 사회후생 효과를 분석한 결과, 수출가격을 낮게 유지함으로써 소비자는 일부 혜 택을 보지만, 생산자의 후생은 크게 감소하여, 사회 전체적인 후생은 감소하는 것으로 나타났다. 최저 수출가격제도를 유지 함으로써 나타나는 경제적 손실이 있음에도, 베트남 정부가 최 저 수출가격제도를 유지하려고 하는 것은 정치적인 이유 때문 으로 보인다. 베트남의 1인당 국민소득은 2012년 기준 1,500 달러에 미치지 못한다. 그만큼 사회적으로 취약계층이 많다는 의미이다. 따라서 경제적인 측면에서는 다소 손해가 있더라도, 자국 내 소비자를 일정 정도 보호하기 위한 목적 때문에 최저 수출가격제도를 운영하고 있는 것으로 보인다. 본 논문에서 베트남의 쌀 수출에 대한 국제 수요 변화를 예 측하기 위한 구체적인 모델을 설정하지 않았다. 즉, 베트남 국 내시장 및 수출시장에 미치는 영향을 엄밀히 분석하기 위해서 는 구체적인 수요 및 공급함수를 추정해야 한다. 하지만 이 연구에서는 자료의 한계로 인해 구체적인 함수를 추정하지 않 고 다양한 탄성치를 가정하여 효과를 분석하였다. 이는 이 연 구가 가지고 있는 한계로 향후 자료가 확보된다면, 좀더 엄밀한 분석이 가능할 것이다. 하지만 베트남이 운영하고 있는 최 저 수출가격제도의 효과를 이해하는 데는 큰 무리가 없을 것 으로 판단된다. 최저 수출 가격 제도는 국내 가격을 안정시키는 효과도 있 지만, 농가 소득에도 영향을 미친다. 또한, 생산자와 유통업자, 수출업자 사이의 이익 분배에도 영향을 미친다. 이에 대한 연 구도 최저 수출가격제도의 효과를 분석하는 측면에서 매우 중 요하지만, 이 연구에서는 연구상의 제약으로 이에 대한 분석 은 포함하지 않았다.

현행 공정거래법은 최저재판매가격유지행위의 경우 예외없이 위법한 행위로 규정하고 있다. 그런데 최근 대법원은 일련의 사건에서 공정거래법의 입법목적과 재판매가격유지행위를 금지하는 취지에 비추어 최저재판매가격유지행위가 비록 해당 상표 내의 경쟁을 제한하는 것으로 보이는 경우라 할지라도 시장의 구체적 상황에 따라 그 행위가 관련 상품시장에서의 상표간 경쟁을 촉진하여 결과적으로 소비자후생을 증대하는 등의 정당한 이유가 있는 경우에는 예외적으로 허용된다는 의견을 개진하였다. 이는 미국 연방대법원의 Leegin 사건이 국내에도 영향을 미쳐 최저재판매가격유지행위를 당연위법(per se illegality)처럼 취급하던 규제태도에 대해 재평가를 하게 되면서 기존의 최저재판매가격유지행위를 무조건 금지하던 당연위법 원칙에서 사안별로 위법성을 판단해야 한다는 합리의 원칙(rule of reason)으로 입장을 전환한 것으로 볼 수 있다. 따라서 이 논문은 재판매가격유지행위의 개념과 국내의 규제 동향을 살펴보고 美 연방대법원의 Leegin 사건을 상세하게 검토하였다. 그리고 최근 국내 최저재판매가격유지행위와 관련한 일련의 사건에 Leegin 사건의 판단개념을 적용하여 분석함으로써 향후 최저재판매가격유지행위의 판단의 결과를 도출하였다.