• 농촌지도와개발
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• 제24권1호
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• pp.9-19
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• 2017

This paper analyses the interrelationship among wholesale price, trading volumes, import volumes and demand for three agricultural products (cabbage, onions, and garlic) by using the consumer panel and the data from the Korea Rural Economic Institute and the Korea Customs Service with a VAR model. The results are summarized as below. (1) The prices of three agricultural products decrease when trading volumes increase while the price of cabbage and onions decreases when import volumes increase. But the prices of three agricultural products have little effects on trading volumes. (2) The demand of three agricultural products increases when trading volumes increase while the demand of cabbage and onions increases when import volumes increase. (3) when demand of garlic and cabbage increases by 10%, their price increases by 2.5% and 1.3% respectively. And the demand of garlic has positive effects on import volumes of garlic.

• 한국유기농업학회지
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• 제30권1호
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• pp.37-50
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• 2022

This study analyzes the impact of Import beer demand on Anti-Japanese sentiment. Recently anti-Japanese sentiment heightened by the media was found to be drastically reducing the consumption of Japanese beer in the domestic imported beer market. Thus, the study used the import demand function of imported beer to analyze the impact of the 'Priming Effect' on the consumption of imported beer by anti-national sentiment, indicating a significant drop in Japanese beer consumption in other countries. Therefore, this study used the imported beer import demand function by country to analyze the impact of the priming effect on imported beer consumption according to anti-national sentiment. As a result, in the case of imported beer consumption in other countries, it was estimated that indirect consumption substitution occurred considerably.

• 수산경영론집
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• 제53권1호
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• pp.55-72
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• 2022

The domestic catch of squid is decreasing every year. Import volume is increasing to replace these domestic products. Import volume is expected to increase in the future, so it is necessary to study import substitution. Therefore, in this study, after selecting frozen squid, which accounts for the majority of imported squid, as the target fish species, China, Chile and Peru, which account for the majority of frozen squid imports, will be selected as the target countries for analysis. Then, the demand function of squid is estimated using the Rotterdam model, the inverse Rotterdam model, AIDS and inverse AIDS, which are the simultaneous equation demand types, and then elasticity is derived. After that, these models are compared in terms of significance, theoretical fit and practical fit.

• 경제분석
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• 제25권1호
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• pp.34-65
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• 2019

본 연구에서는 선진국의 수입수요가 우리나라의 대선진국 수출에 미치는 영향이 글로벌 금융위기 전후로 어떻게 변화하였는지 살펴보았다. 교역상대국의 수입수요를 측정하기 위해 총수요 부문별(민간소비, 공공소비, 투자, 수출)로 상이한 직간접 수입집약도를 보정한 총수요 (Import Intensity-Adjusted Demand) 변수를 산출하여 사용하였다. G7국가의 수입수요가 우리나라의 대G7 수출에 미친 영향을 동태패널 모형으로 분석한 결과, 우리나라의 대G7 수출은 상대국의 수입수요에 대해 글로벌 금융위기까지는 탄력적이었던 반면 위기 이후에는 비탄력적으로 변한 것으로 나타났다. 수입수요를 세분화하여 민간소비, 공공소비, 투자 및 수출로 나누어 분석한 결과, 위기 기간 중 G7국가의 민간소비 감소가 우리나라의 대G7 수출을 유의하게 감소시켰으며, 위기 이후에는 공공소비 증가가 우리나라 수출을 유의하게 증가시킨 것으로 분석되었다. G7국가의 투자가 우리나라 수출을 증가시키는 영향은 위기 이후 약화된 반면 G7국가의 수출이 우리나라의 대G7 수출을 증가시키는 영향은 위기 전후 모두 유의하게 나타났다. 이러한 결과는 향후 선진국의 내수경기 변화가 우리나라의 대선진국 수출에 미치는 영향이 예전에 비해 제한적일 수 있음을 시사하는 한편 보호무역주의 대두 및 세계교역량 둔화에 따른 선진국 수출감소 우려가 우리나라 수출에 부정적 영향을 미칠 가능성에 유의해야함을 시사한다.

• 통상정보연구
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• 제9권4호
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• pp.127-139
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• 2007

There are three methods to examine import structures : 1) look at import coefficient, 2) import dependency, and 3) composition ratio of imported products. Therefore, this study analyses the import structure of Korea using the three methods above and when final demand occurs on produced goods and services in each industrial section, it divides import induction coefficients that indicate size of induced import directly and indirectly into consumption, investment and export to identify the effect of export on import induction.

• 한국산림과학회지
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• 제98권2호
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• pp.148-155
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• 2009

The objective of this study is to know market structures of softwood logs being imported to South Korea from log producing countries. Import demand of softwood logs imported to South Korea from America, New Zealand and Chile is fixed as a function of log prices, the lagged dependent variable and output. On the basis of the adaptive expectations model, linear regression models that the explanatory variables included and the lagged dependent variable were estimated by Seemingly Unrelated Regression Equations (SURE). The short-run and long-run own price elasticity of America's softwood log import demand is -1.738 and -4.250 respectively. Then long-run elasticity is much higher than short-run elasticity. Short-run and long-run crosselasticity of New Zealand's softwood log import demand with respect to American's softwood log import price are inelastic at 0.505 and 0.883 respectively. Short-run and long-run cross-elasticity of Chile's softwood log import demands with respect to American's softwood log import prices were highly elastic at 2.442 and 4.462 respectively. Long-run elasticity was almost twice as high as short-run elasticity.

• Journal of Information Processing Systems
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• 제20권1호
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• pp.93-104
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• 2024

China is playing more predominant role in the liquefied natural gas (LNG) market worldwide and LNG import price is subject to various factors both at home and abroad. Nevertheless, previous studies rarely heed a multiple of factors. A time-varying parameter factor augmented vector auto-regression (TVP-FAVAR) model is adopted to discover the determinants of China's LNG import price and their dynamic impacts from January 2012 to December 2021. According to the findings, market fundamentals have a greater impact on the import price of natural gas in China than overall economic demand, financial considerations, and world oil prices. The primary determinants include domestic gas consumption, consumer confidence and other demand-side information. Then, there are diverse and time-varying spillover effects of the four common determinants on the volatility of China's LNG import price at different intervals and time nodes. The price volatility is more sensitive and long-lasting to domestic natural gas pricing reform than other negative shocks such as the Sino-US trade war and the COVID-19 pandemic. The results in this study further proves the importance of domestic natural gas market liberalization. China ought to do more to support the further marketization of natural gas prices while working harder to guarantee natural gas supplies.

• 수산경영론집
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• 제29권2호
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• pp.97-110
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• 1998

This paper tries to estimate Korea's import demand function for fisheries using cointegration analysis. The estimation function consists of one dependent variable-import quantity of fisheries(FTIW) and two independent variables-relative price(RP) between importable and domestic products and real income(GDP). As it has been empirically found out that almost all of time series of macro-variables such as GDP, price index are nonstationary, existing studies which ignore this fact need to be reexamined. Conventional econometric method can not analyze nonstationary time series in level. To perform the analysis, time series should be differenciated until stationarity is guaranteed. Unfortunately, the difference method removes the long run element of data, and so leads to difficulties of interpretation. But according to new developed econometric theory, cointegration approach could solve these problems. Therefore this paper proceeds the estimation on the basis of cointegration analysis, because the quartly variables from 1988 to 1997 used in the model is found out to be nonstationary. The estimation results show that all of the variables are statistically significant. Therefore Korea's import demand for fisheries has been strongly affected by the variation of real income and the relative price.

• 무역학회지
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• 제46권4호
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• pp.219-234
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• 2021

Armington elasticity has been a methodology for analyzing how much imports could increase in response to importing price cuts, assuming the possibility of incomplete substitution of domestic and imported products. This study calculates Armington elasticity values in Korean fisheries sector and presents an analysis method for classifying items based on price and preference differences. The model is modified reflecting the characteristics of the fisheries market along with the typical OLS, PAM, and ECM models. The result's implication is that products with a high import growth rate do not necessarily show a high Armington value, but it could be seen that price is not the only factor facilitating fisheries imports increase. Considering the items of which demand increases due to importing price cuts have an indiscriminate demand between domestic and imported products, the results could be interpreted that the Korean fisheries importing market has been easily affected by the changes in import prices. Fisheries grouping by price and preference demonstrates that explanatory variables other than price should be considered when estimating import demand.

• 수산경영론집
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• 제39권3호
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• pp.91-109
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• 2008

The worldwide proliferation of regional trade agreements combined with rising interests of 37countries has led to the emergence of a possible GSTP between each country. Although there are many obstacles to GSTP, its effect, if a realized, will go beyond trade related issues. This study was to specify and estimate a model of Korea-GSTP Ground in Korea that can be used to evaluate and improve management decisions. The development of the model relied on several submodels. On the trade negotiation side, a import demand function was estimated in order to account for the increasing amount of import. In terms of margin of preference(MOP)s, they were used to estimate values after decreasing tax based on scenarios I, II, and III. The results showed that the highest effects for increasing value and amount of import are a freezing crab(HS code 0306143000) and freezing hairtail(HS code 0303793000). This paper will be provide to help policy makers understand the Korea-GSTP Ground in the Korea fishery.