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1.
This paper introduces structural patent indicators in the forward patent citation networks (FPCNs). Using the estimates of their relationship with firm market value, it explores the effect of the structural patent indicators on patent price. When applied to US smartphone industry and US drug and biotechnology industry, the common finding is that a firm's registered patent gets higher price if influenced faster by the previously registered patents of the same firm through self-citations. The empirical results imply that merely counting forward citations, shown related to patent price by the previous works, is insufficient; the structural properties in FPCNs are essential for the more accurate estimation of patent price. They also show that the relationships between structural patent indicators in the FPCNs and patent price are different between industries. It urges the necessity of selecting structural patent indicators, well fitted to each industry, for the better patent valuation using forward citations.  相似文献   

2.
In this study, we employ a multivariate panel error correction model (PVECM) to investigate asymmetric price transmission among the farm, processor, and retail segments of the European food supply chain for the 2005–2016 period. The results indicate that, in both the long- and short-run, retail prices respond more strongly to processor price increases than decreases and the same occurs for processor prices due to farm price changes. Thus, the findings demonstrate the presence of positive asymmetric price transmission in the European food supply chain. Finally, the results of the present study indicate that the food price pass-through varies greatly across product category and across countries, and that the pass-through to producer prices is greater than that to consumer prices.  相似文献   

3.
We analyze how technology transfer from a leading economy affects followers productivity growth in manufacturing sectors and Gross Domestic Product. Allowing for heterogeneous technology levels we explore how this impacts rates of catch-up in labor productivity across manufacturing sectors and GDP for 16 OECD nations. Our results indicate that aggregate studies bias downward the estimated rates of catch-up. These rates of catch-up, as well as efficiency levels, also differ across countries. We find that institutional factors such as bureaucratic efficiency are important determinants of the estimated catch-up rates.First version received:October 2001/Final version received:September 2003Earlier versions of this paper have been presented under the titles of Cross-Country Catch-up in Manufacturing and Heterogeneous Rates of Catch-up in Manufacturing Industries. The authors would like to thank participants of the North American Productivity Conference, June 2000, at Union College, N, Y., and the Associate Editor for helpful comments and criticisms.  相似文献   

4.
This paper compares pooled and non-pooled models of UK capital investment using the Confederation of British Industrys (CBI) Industrial Trends Survey, focusing on the impact of uncertainty. The uncertainty measure is based on the cross sectional dispersion of optimism about the future business conditions in the industry in which the firm operates. The panel data estimation shows that uncertainty has quantitatively important negative effects on investment. However, if we look at the estimation results at the industry level, we find a great diversity in both estimated elasticities and t-statistics, providing valuable information not available from the pooled model. Finally, we compare the forecast performances of the above models; this analysis confirms that pooled estimators are generally better than non-pooled estimators in terms of out-of-sample forecast performance, but the difference between the two is not very large.  相似文献   

5.
6.
分析我国4个直辖市1999—2009年的面板数据,运用协整检验及误差修正模型,考察了房地产价格与信贷规模的长期和短期关系。结果表明:第一,直辖市房地产价格与信贷规模存在协整关系,且信贷规模对房地产价格的影响是正向的;第二,短期内信贷规模对房地产价格存在影响,且上期房地产价格的变动对房价有显著影响。  相似文献   

7.
The paper investigates price dynamics under market liberalization, with a focus on the effects of lowering price floors. We analyze price dynamics by specifying and estimating a dynamic Tobit model under time-varying volatility, where the market price is censored by a government-set support price. The model is applied to the U.S. butter market over the last three decades. The econometric results show how the price support program affects both expected prices and the volatility of prices. It is found that the censoring effects of a price support program can be significant and large even if the price support is set relatively low.
Jean-Paul ChavasEmail:
  相似文献   

8.
基于省际面板数据的房地产市场非均衡实证分析   总被引:1,自引:0,他引:1  
本文从25个省际数据出发,通过建立3个不同特征的面板模型,考察房地产价格对房地产市场非均衡的影响及其省际差异。由于行业本身特征与公共政策的时滞效应,未来控制的方向在于正确引导消费者对价格的理性预期,建立与完善经济预警机制.  相似文献   

9.
This study investigates the implications of hedonic pricing for price dynamics of differentiated commodities. A conceptual model of hedonic pricing is developed under a Leontief technology, showing how commodity prices reflect the underlying value of their components. Implications for the existence of cointegration relationships among commodity prices are derived. An application to the pricing and dynamics of selected US dairy commodities is presented. It provides evidence on the role of component valuation in the dynamics of dairy commodity prices in the short run as well as in the long run. Distinguishing between market regime and government regime (when the government price support is active), the analysis finds significant differences in dairy price dynamics between the two regimes.  相似文献   

10.
Anne Musson 《Applied economics》2020,52(25):2657-2678
ABSTRACT

The aim of this paper is to understand the economic performance of craftsmen cooperatives during the crisis period. These cooperatives have the distinctive feature of being supply cooperatives. We use an exhaustive dataset for the French craftsmen cooperatives (2004–2014). We estimate Bayesian Translog econometric models in order to underline the impact of the 2008 crisis on these cooperatives. On the one hand, cooperatives’ turnover and economies of scales decrease during the crisis, the effect is lower for elder cooperatives and varies across sectors. On the other hand, there is a convergence towards the mean for the various generations of cooperatives. These findings are robust to alternative econometric specifications.  相似文献   

11.
ABSTRACT

A panel smooth transition regression model was adopted to analyse the non-linear impact of oil prices on oil demand. Data for 42 countries was obtained from the International Energy Agency for the time period spanning from January 1990 to June 2017. The results indicate that a threshold value does exist. Furthermore, when the oil price was lower than this threshold value, a positive relationship between oil price and oil demand was observed. When the price of oil was higher than the threshold value, however, a negative relationship between price and demand was found.  相似文献   

12.
The paper examines to what extent exchange rate volatility affects Vietnam’s bilateral import value. The two-step system generalized method of moments (GMM) was employed on panel data over a 10-year period. Exchange rate volatility was generated by two measures, including generalised autoregressive conditional heteroskedastic (GARCH) and moving standard deviation (MOVSD). A variety of diagnostic tests which ensure the consistency of GMM estimates were discussed. The main findings confirm that all explanatory variables demonstrated the expected signs, and exchange rate volatility has positive impacts on Vietnam's import flows. However, there is a large overall difference between the results produced with those two volatility measures.  相似文献   

13.
We examine the effects of private vs. public ownership on the level and structure of employment using uncommonly rich data on the population of Portuguese firms from 1991 to 2009. We find that private ownership is associated with sizeable job losses. This occurs whether we consider privatizations or nationalizations, and the relationship tends to be stronger in the presence of foreign capital. We also find some evidence that private ownership is associated with higher skill utilization, particularly following privatizations and when foreign investment is present. The estimated job losses associated with private ownership are consistent with a theory in which the shift in ownership increases the degree of profit orientation and leads to lower job security.  相似文献   

14.
The aim of this study is to analyse the impact of trade openness on technical efficiency of the European Union’s (EU) agricultural sector. There are no systematic theories linking trade policy to technical efficiency; hence, the relation between trade liberalization and technical efficiency is fundamentally ambiguous. Stochastic frontier analysis is used to model the relationship between EU’s production resources and agricultural output, as well as the importance of trade openness on technical efficiency of a country. The data for 16 of the 28 EU members were available for the period 1980–2007 including land, capital, fertilizer, labour, agricultural GDP, foreign direct investments (FDI), exports and import data. Results indicate that trade openness has an immediate, negative impact on efficiency in the EU agricultural sector. Over time, however, trade openness does increase efficiency. The FDI outflows increase efficiency. This suggests that an initial reduction in capital supply forces EU nations to utilize other factor inputs more efficiently. However, there is the unexamined potential that over time the depletion of capital results in a decrease in efficiency. Finally, formerly communist member-countries of the EU are found to have the lowest technical efficiency scores whereas Southern European nations have the highest efficiency.  相似文献   

15.
The paper examines the effect of inflation on growth in transition countries. It presents panel data evidence for 13 transition countries over the 1990–2003 period; it uses a fixed effects panel approach to account for possible bias from correlations among the unobserved effects and the observed country heterogeneity. The results find a strong, robust, negative effect on growth of inflation or its standard deviation, and one that appears to decline in magnitude as the inflation rate increases, as seen for OECD countries. And the results include a role for a normalized money demand in affecting growth, as well as for a convergence variable, a trade variable and a government share variable. Robustness of the baseline single‐equation model is examined by expanding this into a three‐equation simultaneous system of output growth, inflation and money demand that allows for possible simultaneity bias in the baseline model.  相似文献   

16.
张大为 《经济研究导刊》2012,(1):188-191,195
随着中国经济、科学、文化的快速发展,中国设计产业已经从萌芽逐渐走向成长。中国经济发达区域已意识到设计产业在国民经济中的先导作用,并积极寻求有效的发展路径。因此选取了设计产业发展进程较快的29个城市(地区),并搜集了2007—2009年这三年的相关数据,利用计量经济学的固定效应模型进行面板数据研究。结论表明,设计产业的发展对于一个城市的工业生产总值,GDP都有显著的推动作用,另一模型则表明一个城市的研发投入和教育支出对于设计产业也有明显的促进。  相似文献   

17.
基于企业社会责任的竞争具有三种模式,社会责任与业务协同竞争的模式具有其特有的优势,诸多企业具有向该模式转型的必要。该模式的优势源于以该模式经营的企业的知识特点,其他企业可通过组织学习实现向该模式的转型。  相似文献   

18.
As the EU's biggest supplier of imported goods and a second trading partner, China has become an increasingly important actor on the global economic scene. This paper reports new evidence through analyzing whether the EU labour market is affected by exposure to imports from China. Drawing on a panel dataset of 27 EU countries, over the 2003–2013 period, and using the pooled mean group estimator, the results show that imports from China have a negative effect on industrial employment. This result holds separately for the all analyzed categories: all products, manufactured products as well as for the sub‐groups.  相似文献   

19.
The linkage between per capita GDP and sulfur emissions for 12 Western European countries was analyzed over a period of more than 150 years. The analysis also looked at the impact of air pollution regulations on the shape of the income–pollution relationship. At both the aggregate and country levels, we find an inverted U-shaped relationship and the estimated turning points of most countries are plausible. In addition, environmental regulations are found to lower the EKC and they can also shift the turning point of the curve. In some cases, the shift is to the left and in a few to the right.  相似文献   

20.
服务业FDI对我国服务业增长效应研究   总被引:7,自引:2,他引:5  
本文运用协整分析和面板数据分析对服务业利用FDI对我国服务业总体和各主要行业增长效应进行实证研究。协整分析结果表明,服务业FDI和我国服务业总体增长之间存在长期稳定的均衡关系,服务业FDI促进了我国服务业总体增长。面板数据变系数模型结果表明,不同服务行业利FDI对行业增长效应存在很大的差异性,调整我国服务业FDI的行业流向具有很大的现实意义。在上述分析的基础上,提出相关政策建议。  相似文献   

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