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1.
lity of different varieties were investigated. According to the high-yield, good-quality and high-efficiency principles, new variety was selected. Two variet  相似文献   

2.
This article examines the effects of persistence, asymmetry and the US subprime mortgage crisis on the volatility of the returns and also the price discovery, efficiency and the linkages and causality between the spot and futures volatility by using various classes of the ARCH and GARCH models, and through the Granger’s causality. We have used two indices: one for spot and the other for futures, for the daily data from 12 June 2000 to 30 September 2013 from Nifty stock indices. We have then tested for ARCH effects, and subsequently employed various models of the ARCH and GARCH conditional volatility. The GARCH(1,1) model is found to be significant, and it implies that the returns are not autocorrelated and have ‘short memory’. It supports the hypothesis of the efficiency of the markets. The negative ‘news’ has more significant effect on volatility, corroborating the ‘leverage impact’ in finance on market volatility. We have also tested the volatility spillover effects. The two methods we employed support the spillover effects and the causality is bidirectional. We also have used the dummy variable for the US subprime mortgage financial crisis and found that they are statistically significant. Indian stock market is thus integrated to the world stock markets.  相似文献   

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Felix Ciută 《Geopolitics》2013,18(1):120-147
In the context of post–Cold War European integration, ‘making’ regions has become commonplace. Far from reducing the significance of regional initiatives, inflationary regional labelling draws attention to the significant role played by ‘regions’ as legitimating political vectors. Why are political projects formulated in regional terms? Critically examining the Black Sea region project, this article suggests that region-making transcends the boundary between theoretical and political praxis. Regional entrepreneurs frequently use different conceptual categories in the formulation and justification of their initiatives. In order to understand why regional forms are preferred politically, it is necessary to scrutinise closely this contextual interaction between political praxis and conceptual logic. The article maps the various concepts of region which coexist in the Black Sea region project, and discusses their relationship with four political and hermeneutical strategies that link the regional project with its context, profoundly marked by the logic of European security integration. The ‘double hermeneutics’ of the Black Sea region highlights the contradictory security logics that structure European security in general and this regional project in particular. In the conclusion, the article draws attention to the significant epistemological and normative consequences of the double hermeneutics of the Black Sea region.  相似文献   

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Kerfoot KM 《Nursing economic$》2010,28(5):350-1, 349
Success can easily breed hubris. As leaders become more confident, their success can limit their learning because they develop repetitive patterns of filtering information based on past successes and discount information that does not agree with their patterns of success. It is important for leaders to stay grounded in reality and effective as their success grows. Humility, gratitude, and appreciation will avoid the overconfidence that leads to hubris. Building confidence in others is the mark of a great leader. Hubris is not.  相似文献   

7.
《Feminist Economics》2013,19(3):125-128
This response locates feminist methodological strategies, first, as both “outside” and “inside” familiar processes of the sciences and, second, in relation to a formulation of the democratic ethos.  相似文献   

8.
This paper explores the relationship between the advent of the birth control pill and divorce rates. Women using the pill can decide when and whether to have children and whether to maintain their attachment to the labor force. This ability may increase women's autonomy, making divorce more feasible. The pill's effects are identified through a quasi-experiment exploiting differences in the language of the Comstock anti-obscenity statutes approved in the late 1800s and early 1900s in the United States. Empirical evidence from state-level data on US divorce rates 1950 to 1985 shows that sales bans of oral contraceptives have a negative impact on divorce. These findings are robust to alternative specifications and controls for observed (such as women's labor force participation) and unobserved state-specific factors, and time-varying factors at the state level. Results suggest that the impact of women's control of hormonal contraception on their autonomy is important in divorce decisions.  相似文献   

9.
This article is a critical geopolitical analysis of Chinese media representations of the 5 July 2009 riots in Xinjiang, China. Significant events often define the geopolitical climate by creating a space for the construction of boundaries between identity categories and the appropriate norms for behaviour towards the Other. The post-riot reports framed the event through the prism of the global war on terror to justify a violent response to protect Chinese citizens from the perceived threat of the Other. After connecting theories of narratives, the event, and group making, the article identifies three representational tropes – the criminal, the terrorist, and the outside agitator – in Chinese documents that create boundaries between the identity categories Uyghur and Han and define how the Other should be treated. The three representation tropes of the Other in the aftermath of the 5 July riots simultaneously situate the protestors as outside Chinese society and perpetuate the claim of the superiority of Chinese culture and civilisation.  相似文献   

10.
This study examines the risk exposure of Australian financial firms to changes in the term structure of interest rates. Non-linearity in the interest rate term structure is captured by the three-factor model of interest rate level, slope, and curvature. We observe that financial firms have negative exposures to the interest rate level, while non-financial firms have positive exposures. This finding suggests that financial firms need to hedge against rising interest rates, while non-financial firms need to hedge against falling interest rates. Small banks and insurance companies have a positive risk exposure to the slope factor, while real estate firms have a negative risk exposure to the curvature factor. Though the interest rate level is the most important factor, ignoring the slope and curvature factors could lead to underestimating a financial firm’s overall interest rate risk exposure. These findings are robust to controlling for the orthogonalized market return, time-varying equity risk premium, and the global financial crisis. This study offers practical tools to regulators, such as the Reserve Bank of Australia and Australian Prudential Regulatory Authority for assessing interest rate risk exposures of the financial and non-financial sectors.  相似文献   

11.
This paper, which builds on Chipman (The economist’s vision. Essays in modern economic perspectives, 131–162, 1998), analyzes a simple model formulated by Hurwicz (Jpn World Econ 7:49–74, 1995) of two agents—a polluter and a pollutee—and two commodities: “money” (standing for an exchangeable private good desired by both agents) and “pollution” (a public commodity desired by the polluter but undesired by the pollutee). There is also a government that issues legal rights to the two agents to emit a certain amount of pollution, which can be bought and sold with money. It is assumed that both agents act as price-takers in the market for pollution rights, so that competitive equilibrium is possible. The “Coase theorem” (so-called by Stigler (The theory of price, 1966) asserts that the equilibrium amount of pollution is independent of the allocation of pollution rights. A sufficient condition for this was (in another context) obtained by Edgeworth (Giorn Econ 2:233–245, 1891), namely that preferences of the two agents be “parallel” in the money commodity, whose marginal utility is constant. Hurwicz (Jpn World Econ 7:49–74, 1995) argued that this parallelism is also necessary. This paper, which provides an exposition of the problem, raises some questions about this result and provides an alternative necessary and sufficient condition.  相似文献   

12.
Extending Obstfeld and Rogoff (J Econ Perspect 9:73–96, 1995), Ball (Monetary policy rules, University of Chicago Press, pp. 127–144, 1999), Svensson (J Int Econ 50: 155–183, 2000), Taylor (Am Econ Rev 91: 263–267, 2001), Gali and Gertler (J Econ Perspect 21:25–46, 2007), and others, this paper finds that central banks in the Philippines and Thailand respond negatively to the current real exchange rate and positively to the lagged real exchange rate whereas central banks in Indonesia and Malaysia do not react to the current or lagged real exchange rate. For the Philippines and Thailand, the null hypothesis that the sum of the coefficients of the current and lagged real exchange rates is zero cannot be rejected at the 5% level. Central banks in these four countries respond positively to the inflation rate and the output gap, suggesting that the concept of a simple or an extended Taylor rule would apply to these countries. Monetary policy reaction functions for Indonesia and Thailand are steeper than those for Malaysia and the Philippines and would be more responsive to a change in the inflation rate.   相似文献   

13.
The paper argues that input–output analysis existed long before it received its name and Wassily Leontief made it popular as a tool of empirical analysis and a foundation of economic policy. It grew out of an attempt to ascertain the capacity of an economic system to reproduce itself and generate a surplus that can be used for various purposes. Primitive pronouncements are encountered in early civilizations, for example Mesopotamia, in terms of the ratio of the amount of grain produced and the amount of it used up, directly and indirectly. These ideas reappeared in a more sophisticated form at the time of the inception of systematic economic analysis in the 17th and 18th centuries in Europe and found a two-sector expression in François Quesnay's Tableau économique. The material input–output structure was then considered the core of the economic system that contained one of the keys to basically all other important economic phenomena and magnitudes. The way in which the potentialities embodied in the input–output structure, conceived as a system of production, have, or have not, been exploited over time define both the problems and perspectives of contemporary input–output analysis. Three aspects will be scrutinized more closely: the problem of value added, the treatment of fixed capital and the problem of technical change. Happily enough, while the problems are huge, the prospects are encouraging. There is no fear that input–output analysts will soon have to look for new fields of research because the old ones have been exhausted.  相似文献   

14.
Bang-bang investment in a two-sector growth model with immobile capital is rational and leads to a unique and globally stable long-run equilibrium along a sliding trajectory. This steady state coincides with the stationary equilibrium in the traditional model with non-sector-specific capital.This article was written while the authors were visiting scholars at Cornell University. We gratefully acknowledge financial assistance from the Erasmus University Trust Fund and the Netherlands Scientific Organization. We would like to thank, without implicating, two anonymous referees, Martijn Herrmann, Jean-Marie Viaene, Claus Weddepohl, and the participants of seminars at the University of Maryland, the University of Montreal, and Erasmus University Rotterdam for perceptive remarks and useful comments. Jeroen Hinloopen and Rien Wagenvoort provided able graphical assistance. The views expressed in this article are those of the authors and not necessarily those of the World Bank.  相似文献   

15.
Rent-to-own (RTO) is attractive to financially distressed consumers. It allows immediate access to merchandise and an opportunity for eventually acquisition. Yet goods can be returned at any point without penalty or other adverse consequences. We use a competing risk methodology that accounts for unobserved consumer heterogeneity to study how contracts conclude, estimating the probabilities of exit??via return, purchase, or skip??and the associated durations. The estimated outcome probabilities highlight the use of the embedded return option by RTO consumers and the trade-offs and cross-subsidization implicit in the RTO contractual arrangement. We offer rational and behavioral explanations of consumer behavior in the RTO market, which we believe can be generalized to other consumer loan markets.  相似文献   

16.
The Group of Twenty and the new world order it is meant to signify have prompted a wave of triumphalism around the world from those who, like French President Nicolas Sarkozy, bemoan the influences of ‘Anglo-Saxon capitalism’ and from neo-Marxists, who view the economic crisis as a harbinger of the resurgence of states over markets. A little over a decade ago, however, the late doyenne of international political economists, Susan Strange, wrote eloquently about the reasons why the state was in retreat, its structural power draining away in favour of markets. Have the intervening dozen years, with their recurrent crises in markets and corporate governance, demonstrated the need for a return of the state? This analysis of the G20 London communiqué, using criteria that Strange advanced, suggests that far from asserting a return of the state, the G20 signifies its persistent weakness and concludes that the G20 leaders, at least, sense a more complex network of power relationships, and that structural power rests in the network.  相似文献   

17.
The process of innovation follows nonlinear patterns across the domains of science, technology, and the economy. Novel bibliometric mapping techniques can be used to investigate and represent distinctive, but complementary perspectives on the innovation process (e.g. ‘demand’ and ‘supply’) as well as the interactions among these perspectives using animations. In a map, the different perspectives can be represented as ‘continents’ of data related to varying extents over time. For example, the different branches of Medical Subject Headings (MeSH) in the Medline database provide sources of such perspectives (e.g. ‘Diseases’ vs ‘Drugs and Chemicals’). The multiple-perspective approach enables us to reconstruct facets of the dynamics of innovation, in terms of selection mechanisms shaping localisable trajectories and/or resulting in more globalised regimes. By expanding the data with patents and scholarly publications, we demonstrate the use of this multi-perspective approach in the case of RNA Interference (RNAi). The possibility to develop an ‘Innovation Opportunities Explorer’ is specified.  相似文献   

18.
I implement a two-stage procedure to estimate the components of real wage change in the Philippines along the wage distribution from 2001 to 2006, as well as the contribution of individual covariates to each component. The methodology is based on Re-centred Influence Functions (RIF), as suggested by Firpo et al. (2009). The advantage of this methodology is that it not only decomposes the unconditional wage change at any quantile of the wage distribution, but also allows the characterization of the contribution of any single covariate on each component. I find that real earnings of males in the Philippines declined and the decline along the earnings distribution is generally higher at higher deciles for all males and higher at lower deciles in Manila. Decomposition results are driven by the wage structure component, while the composition effect is small and generally positive with education as the main contributor. Within the wage structure effect, the main determinants are associated with changes in the rewards of experience and occupation, along with residual change (change in intercepts).  相似文献   

19.
This article reviews and assesses Philip Klein’s work on business cycles and macroeconomics, the public sector, and the economics of John Maynard Keynes. The article makes several findings. First, Klein built on the pioneering efforts of Wesley Mitchell to advance the development of cycle indicators and to outline an eclectic theory of cycles that remains useful for synthesizing a broad literature. Second, Klein’s essays on macroeconomics contain enduring discussions of the malleability of the “natural” rate of unemployment and the value of a behavioral approach to expectations. Third, he refocused the institutionalist attention on the public sector by introducing “higher efficiency” and other concepts to help explain how government policy plays a role in economic life. Fourth, Klein emphasized the role of fiscal policy in moderating business cycles. Fifth, his work points in the direction of today’s post-Keynesian institutionalism, both by stressing that Keynes was “profoundly institutionalist” in his approach and by arguing that conjoining Keynes and institutionalism would provide a stronger foundation for macroeconomic theory and policy.  相似文献   

20.
This paper employs a reduced form structuralist model of inflation in the OECD over the period 1985–2009 to find out whether domestic prices respond symmetrically to rising and falling import prices. We find that the response is asymmetrical: domestic prices rise when import prices rise but they do not fall when import prices fall. Our finding thus confirms the presence of a ratchet effect in the sample countries during the sample period, and implies that factors – such as exchange rate fluctuations and movements in tariff rates – that influence import prices tend to be inflationary.  相似文献   

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