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Understanding how innovation drives regional development has important economic and social outcomes. Models such as Smart Specialisation and the quadruple helix are increasingly adopted given their sensitivity to place-based contexts. But although innovation processes are dynamic and facilitated by individuals’ interactions, our understanding of how these connections are developed and sustained during helix collaboration development remains under-investigated. This research adopts an action research approach, focused on a regional Australian case study, to test a multi-disciplinary conceptual framework exploring key human-centred, micro-processes driving quadruple helix development: trust building; power relationships; regional readiness; and time and sphere centrality. The findings demonstrate the interactive nature of these processes, with trust-building facilitating the deployment of power bases by critical innovation agents which then foments regional readiness for change, subsequently driving the helix spheres towards overlap. These processes were also driven by changing sphere centrality and unique regional temporal structures. Practically, these outcomes offer insights into the human capital dynamics of regional helix collaborations, particularly for identifying the key individuals required to drive their development.  相似文献   
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Long‐run restrictions have been used extensively for identifying structural shocks in vector autoregressive (VAR) analysis. Such restrictions are typically just‐identifying but can be checked by utilizing changes in volatility. This paper reviews and contrasts the volatility models that have been used for this purpose. Three main approaches have been used, exogenously generated changes in the unconditional residual covariance matrix, changing volatility modelled by a Markov switching mechanism and multivariate generalized autoregressive conditional heteroskedasticity models. Using changes in volatility for checking long‐run identifying restrictions in structural VAR analysis is illustrated by reconsidering models for identifying fundamental components of stock prices.  相似文献   
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This paper discusses the role of technological spillovers and technological races in dynamic strategic interactions setup. Two firms invest simultaneously into new products creation and into further development of the quality of these products. Each firm may benefit from the costless technological spillover in case of technological leadership of the other firm. At the same time they cooperate in the joint creation of new products. Three different scenarios emerge: constant technological leadership, the technological leapfrogging and symmetric outcome with or without potential spillovers. R&D is maximal for the first scenario and minimal for the symmetric play under the threat of spillover with endogenous specialization of firms’ activities in cases of constant leadership and leapfrogging. Definition of technological competition intensity as inverse to the technology gap allows to recover inverted-U relationship between those two in a multidimensional context.  相似文献   
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In 2006, the U.S. Congress passed the Unlawful Internet Gambling Enforcement Act (UIGEA) which prohibited financial institutions from processing transactions arising from online gaming activities, thereby severely hindering U.S. residents from participating in online casino games, primarily poker. Enactment of this legislation followed lobbying and political pressure from a variety of interest groups. By examining House roll call votes, we identify empirically the sources of political influence that resulted in passage of the internet gambling legislation. We find that party affiliation was of primary importance, with Republicans more likely to vote in favor of the bill. The percentage of constituents who are Evangelical Christians and also the number of gambling establishments in the district were positively associated with votes for the bill. However, contributions from the gaming industry decreased the probability a congressman would vote for the bill. (JEL D72, L83)  相似文献   
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The International Monetary Fund is at present examining the possibility of borrowing on private capital markets in order to meet its growing refinancing needs. Reservations concerning such a step have been voiced in particular by the oil-importing developing countries. Professor Konrad analyses the pros and cons.  相似文献   
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I replicate most of the results in Angrist, Imbens, and Krueger (Journal of Applied Econometrics 1999; 14: 57–67), point to a possible error in and re‐estimate Model 3, and analyze some simple extensions. The programming code, data, and results are available at http://sites.google.com/site/antonnakov/software . Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
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The paper considers the development of small and medium enterprises (SME) in two transition economies where market reforms have been slow (Ukraine and Belarus), focusing specifically on the role of government in the process. Empirical data from a study on SMEs and economic development in Ukraine, Belarus and Moldova are used to consider the contribution of SMEs to different aspects of transformation whilst data from a second project are used to show the support needs of SMEs.Following the introduction, which summarises the aims and methodology, the second section presents brief profiles of the context for SME development in each country. Part 3 summarises some of the main empirical findings, focusing on those aspects that have potential policy significance, specifically with respect to employment, innovation, and market orientation, whilst the fourth section considers survey evidence of the support needs of SMEs. The final section draws out the main policy implications of the findings, whilst also setting out an agenda designed to increase the contribution of SMEs to economic development in the future.On the whole, the empirical results demonstrate that some SMEs have developed in Belarus and Ukraine despite the actions of governments, although the number of private enterprises per capita remains small and their qualitative characteristics often reflect the difficult operating conditions. As a result, their contribution to economic and social change is less than it could be, mainly due to an unstable environment and an institutional context that has yet to establish the framework conditions for sustainable private sector development. In terms of policy priorities, the survey data suggest that reform of the distorted legal and financial infrastructures that exist in these countries is the highest priority need.  相似文献   
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