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61.
Experimental Economics - Corporate boards, experts panels, parliaments, cabinets, and even nations all take important decisions as a group. Selecting an efficient decision rule to aggregate...  相似文献   
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Theoretical literature suggests higher asset construction costs in a public-private partnership (PPP) than in traditional public procurement, due to the bundling of construction and operation and the transfer of construction risk, among other factors. Data on ex ante road construction prices in Europe suggest a PPP road to be 24% more expensive than a traditionally procured road, ceteris paribus. This estimate resembles reported ex post cost overruns in traditionally procured roads. Thus, the public sector seems to pay a premium on ex ante PPP construction contract prices mostly to cover construction risk transfer. Other reported sources of higher PPP road construction costs, including bundling, seem on average of lesser importance.  相似文献   
65.
We propose a simple and powerful numerical algorithm to compute the transition process in continuous-time dynamic equilibrium models with rare events. In this paper we transform the dynamic system of stochastic differential equations into a system of functional differential equations of the retarded type. We apply the Waveform Relaxation algorithm, i.e., we provide a guess of the policy function and solve the resulting system of (deterministic) ordinary differential equations by standard techniques. For parametric restrictions, analytical solutions to the stochastic growth model and a novel solution to Lucas' endogenous growth model under Poisson uncertainty are used to compute the exact numerical error. We show how (potential) catastrophic events such as rare natural disasters substantially affect the economic decisions of households.  相似文献   
66.
We analyse the empirical link between offshoring activities and different dimensions of innovation performance at the firm‐level. In order to identify causal effects running from offshoring to innovation, we use a quasi‐experimental comparison group approach by means of (conditional) difference‐in‐difference estimations applied to German establishment‐level data for firms that conducted offshoring activities in the period 2007–13. We find that the international relocation of business functions has a negative impact on the firms’ propensity to be innovative in terms of product and process innovations as well as product improvements. While for larger firms the reduction in process innovations is most striking, potentially due to a lack of resources, stagnation in expertise and a reduction in intra‐organizational learning‐by‐doing associated with the relocation of some business activities, for small and medium‐sized enterprises we particularly observe a reduction in product innovations after the offshoring activity has taken place. When interpreting this ‘pessimistic’ picture on the link between offshoring and the innovation performance of firms, the reader should note that our findings for German establishments have to be assessed through the lens of a global economy in economic recession after 2008, which may have intensified the negative impact of offshoring on the firms’ innovation performance.  相似文献   
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The global economic crisis has strongly affected Europe's economic geography. This study investigates the role of local labour market disparities in determining regional net in‐migration rates. While only a weak link is detected in the precrisis period, the local labour market context of migration grows significantly stronger during the crisis. Decompositions of the estimation results show that changes in migration rates are firstly a result of widened disparities across European regions throughout the crisis. However, also behavioural adjustment processes occur, e.g. an orientation of migrants towards urban areas and away from regions with persistently high long‐run unemployment rates.  相似文献   
68.
In this paper a Lagrange multiplier test of the hypothesis that the covariance matrix of a multivariate time series model is constant over time is considered. It is assumed that under the alternative, the error variances are time-varying, whereas the correlations remain constant over time. Under the parameterized alternative hypothesis the variances may change continuously as a function of time or some observable stochastic variables. Small-sample properties of the test statistic are investigated by simulation. The assumption of constant correlations does not appear overly restrictive.  相似文献   
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This study investigates broadband policies applied in Finland and Sweden with special reference to the geographical coverage of the required network infrastructure. These two Nordic countries are seen as forerunners in the development of the information society, and they also share several other similarities bearing relevance to the take-up of broadband. However, they have applied different broadband strategies: Sweden, one of the first-movers in this field, already launched its ambitious and interventionist national ICT infrastructure program in 2000, whereas the Finnish broadband strategy, published in 2003, largely relies on market forces. The present article analyses these broadband strategies, and attempts to identify their actual differences. It appears that the Finnish strategy caused temporary higher broadband prices and a somewhat slower rollout. However, the current results of the two countries’ strategies in terms of coverage and usage levels, as well as end-user prices, do not indicate any significant long-term policy-induced impacts.  相似文献   
70.
This paper presents a new approach to estimating the longrun internal rate of return (IRR) for the firm from the accountant's rate of profit based on published financial statements. The model developed for estimating the IRR includes both capital and net working asset investments. Modelling and estimating the growth of the firm is an integral part of the approach. Furthermore, estimating the parameters describing the long-run financing behavior of the firm is presented based on discounted average funds flow statements. Finally, the approach is applied on the financial data of a large Finnish business enterprise.  相似文献   
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