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71.
城市是在自然和文化力量相互作用组成的环境中产生和发展起来的,每个城市系统都存在于一个受文化和历史约束的世界中,并拥有一系列已形成的传统和价值。从城市史来看,人类智慧和文化所凝聚而形成的软资源分布、演化与城市及其市民社会的发展之间存在着耦合关系和共生规律。后工业化时代的城镇化越来越依赖于新兴产业和未来产业的发展,了解和掌握软资源的形成、积累和价值规律,利用软资源的特性来开发新兴产业,不仅有利于促进经济发展和就业增长,也有利于在新的产业上规划城镇化,提升城市的品质和内涵。  相似文献   
72.
For selected regions of five EU Member States (Bulgaria, Hungary, Poland, Romania and Slovenia), this paper examines the determinants of the commercialisation of (semi)subsistence farms. While subsistence farming has become an important feature of the EU, there is a lack of evidence on its spatial distribution, importance and reasons for persistence. The analysis utilises cross-regional survey data and qualitative interviews. Results suggest the absence of a subsistence poverty trap driven by either farmer perceptions or transactions costs although capital endowment appears to play a significant part. On the other hand the degree of market engagement depends on access costs, which vary with location, households’ productive assets, specialisation, and risk propensity. Implications for land use policy are discussed.  相似文献   
73.
In this paper, an analytical approximation formula for pricing European options is obtained under a newly proposed hybrid model with the volatility of volatility in the Heston model following a Markov chain, the adoption of which is motivated by the empirical evidence of the existence of regime-switching in real markets. We first derive the coupled PDE (partial differential equation) system that governs the European option price, which is solved with the perturbation method. It should be noted that the newly derived formula is fast and easy to implement with only normal distribution function involved, and numerical experiments confirm that our formula could provide quite accurate option prices, especially for relatively short-tenor ones. Finally, empirical studies are carried out to show the superiority of our model based on S&P 500 returns and options with the time to expiry less than one month.  相似文献   
74.
National borders continue to be strong barriers for mergers and acquisitions in Europe. Using regional data, we construct a gravity model and find that the restraining impact of national borders decreased by more than 17 percent between 1991 and 2007. However, no significant change has occurred since the mid-1990s (i.e., four years before the introduction of the euro). In comparison, we run a corresponding analysis in the United States using the 10 federal regions as country equivalents. The resulting ‘quasi-border’ effect in the United States is weaker than that in the European Union. Yet its decline by 43 percent is much stronger in the same period. We conclude that European integration policy has had little effect on fostering M&A cross-border transactions.  相似文献   
75.
Applying econometric techniques to EU28 panel data and controlling for explanatory variables such as road types, we find that increased truck load capacity does not necessarily aggravate road traffic safety. Specifically, heavy trucks do not seem to be linked with greater numbers of traffic fatalities/accidents, medium trucks appear to be the worst performers in terms of fatalities, and light trucks seem to be the worst for accidents. In summary, our results clarify the complex relationship between truck load capacity and road safety, pointing to the existence of a negative correlation for accidents per capita and an inverse U-shaped curve for fatalities per capita.  相似文献   
76.
The aim of this paper is to analyze the implementation level of International Public Sector Accounting Standards (IPSAS) in the member states of the European Union (EU). After an introduction of the legislative framework in the EU and a review of the literature about the implementation of IPSAS in the EU member states, this paper classifies, on the basis of a survey, the states according to their formal implementation levels of IPSAS. It also analyzes the types of accounting (cash basis accounting, modified cash basis accotmting, accrual accounting, and modified accrual basis accounting) used by the states studied. The survey shows that there are important disparities among the member states, both for the application of IPSAS and for the type of accounting that is used. Furthermore, it appears that even if IPSAS is not legally adopted in most European member states, there is a tendency to use modern accounting systems based on accrual accounting close to IPSAS.  相似文献   
77.
During the European financial crisis, the European Central Bank implemented a series of unconventional monetary policy measures. We argue that these programs lowered the bond yield spreads of Euro-area countries. This hypothesis is tested using pooled OLS estimations and two different datasets: monetary policy event dummies and the purchase volumes of the Securities Markets Programme (SMP). Overall, we find significantly negative effects on bond yield spreads for both datasets, leading us to accept the hypothesis. While the OMT reduces the spreads of both crisis and non-crisis countries, LTROs and the lowering of the deposit rate to 0 percent are mainly effective in non-crisis countries. The SMP lowers the spreads of crisis countries, but it has the opposite effect on non-crisis countries. This converse effect is explained by the risk that increasingly accumulates on the ECB’s balance sheet through the SMP and that way constitutes a fiscal risk for non-crisis countries. The results are confirmed by pooled OLS estimations that measure the effect of unconventional monetary policy on central government debt.  相似文献   
78.
From July to December 2011, the three-month EURIBOR-OIS and EURIBOR-Repo spreads quadrupled and reached 100 basis points due to a stabilization of the EURIBOR and a decrease in the overnight index swap (OIS) and Repo. Using a specific monetary policy announcements and financial indicators database, we find that the European Central Bank’s (ECB’s) unconventional measures did not systematically have a calming effect: Asset buyout announcements decreased market strains, whereas interest rates and liquidity provision announcements did not. Moreover, liquidity provision seems to have a stressing effect. Our findings are consistent with the theoretical underpinnings according to which forward guidance crucially determines the effectiveness of unconventional monetary policies.  相似文献   
79.
Since the invention of the European Patent System, national patent systems have continued to co-exist, although they did lose appeal. How have the different national systems been affected in view of their characteristics? In order to answer this question a constant-market-share (CMS) analysis is carried out. While on a theoretical level, the different elements adding to the appeal of each patent system are discussed, the CMS-analysis reveals the importance of country size in that the national systems of smaller countries lose.  相似文献   
80.
The first step in devising the best incentives to support innovation is to investigate factors that affect the development of innovations. This article contributes to exploring such factors in small food industries in the rural areas of Tehran province, Iran. Using a census sampling method, 111 managers of 60 active firms were interviewed. The results showed that in general the level of technological innovation is low in the studied firms. The managers do not find the technological changes successful in bringing benefit to their firms. Even though correlation analysis indicated a complex association matrix between independent variables, only the firm's capacity of production was associated with technological innovation as a dependent variable. Furthermore, the regression analysis revealed that factors which influence technological innovation are the firm's age, formal research and development, fixed capital, and capacity of production. The results of this study were used to derive practical suggestions for managers and policymakers to increase technological innovation in the studied industry.  相似文献   
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