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91.
Several studies have indicated the importance of public R&D in the transfer and commercialization of nanotechnology. So far, few have focused on university–industry interaction and collaboration performance. In this study, we investigate the impact of technological diversity and value chain complementarity of partners on public nanotechnology R&D projects' performance. We enriched a database on the commercial outcomes of technology research projects from the Dutch Technology Foundation STW. To test our hypotheses, we selected 169 nanotechnology research projects from the database, which started in a five-year period from 1998 until 2003. Project performance was measured five years after completion of the project. Technological diversity has a U-shaped effect on the projects' commercial performance. Findings show a strong positive impact of value chain complementarity of partners on both application development and commercial performance of the projects.. The framework introduced in this study allows an evaluation of the effects of technological diversity and value chain complementarity on application development and the commercial performance of public R&D projects.  相似文献   
92.
"This paper demonstrates that jobs and wages are considerably more important than location-specific amenities in explaining net metropolitan migration of employed persons [in the United States]. These results, which are derived mainly from a unique set of annual migration data, differ considerably from the earlier findings of P. E. Graves...that show amenities to be powerful contributors to the analysis of net metropolitan migration. Several hypotheses are offered and tested to explain the appreciable difference between Grave's results and those of the present study, but the importance of economic factors as opposed to amenities persists."  相似文献   
93.
94.
Filters used to estimate unobserved components in time series are often designed on a priori grounds, so as to capture the frequencies associated with the component. A limitation of these filters is that they may yield spurious results. The danger can be avoided if the so-called ARIMA-model-based (AMB) procedure is used to derive the filter. However, parsimony of ARIMA models typically implies little resolution in terms of the detection of hidden components. It would be desirable to combine a higher resolution with consistency of the structure of the observed series.We show first that for a large class of a priori designed filters, an AMB interpretation is always possible. Using this result, proper convolution of AMB filters can produce richer decompositions of the series that incorporate a priori desired features of the components and fully respect the ARIMA model for the observed series (hence no additional parameter needs to be estimated).The procedure is discussed in detail in the context of business-cycle estimation by means of the Hodrick-Prescott filter applied to a seasonally adjusted series or a trend–cycle component.  相似文献   
95.
Excessive money creation during the Covid pandemic has resulted in Britain's worst episode of inflation since 1990–91. The backdrop to this failure of monetary policy is the Bank of England's aggregate demand/aggregate supply framework together with the Monetary Policy Committee's neglect of broad money. An alternative way to operate monetary policy is urgently needed. A significantly improved monetary policy outcome could be achieved by shifting from trying to steer the economy using interest rates and quantitative easing or quantitative tightening to reliance on the relative stability of income velocity (the ratio of nominal GDP to broad money) as a means of managing aggregate demand.  相似文献   
96.
Socialist societies often emphasized the abolition of traditional social classes. To achieve this objective, educational opportunities were at times ‘actively managed’ and allocated to children of less educated parents. What happened to these patterns after the demise of socialist rule in Eastern Europe? We study the development of educational mobility after the fall of the iron curtain in East Germany and compare the relevance of parental educational background for secondary schooling in East and West Germany. Based on the data from the German Mikrozensus we find that educational mobility is lower in East than in West Germany and that it has been falling in East Germany after unification. While the educational advantage of girls declined over time, having many siblings presents a more substantial disadvantage in East than in West Germany.  相似文献   
97.
Incentive plans are designed to motivate participants to pursue what is valued by an organization. This article discusses how values may influence the design of incentive plans and the success of their implementation. In situations where the incentive plan fits participants' values, the authors predict a process of mutual reinforcement. When values and incentives collide, they propose two possible yet conflicting outcomes: the “carrot effect” and the “snubbed carrot effect.” They conclude by addressing the implications of fit and misfit for research and practice. © 1998 John Wiley & Sons, Inc.  相似文献   
98.
We investigate the responsiveness of individual retirement decisions to changes in financial incentives. A reform increased women's normal retirement age (NRA) in two steps from age 62 to age 63 first and then to age 64. At the same time retirement at the previous NRA became possible at a benefit discount. Since the reform affected specific birth cohorts we can identify causal effects. We find strong and robust behavioral effects of changes in financial retirement incentives. A permanent reduction of retirement benefits by 3.4% induces a decline in the age-specific annual retirement probability by over 50%. The response to changes in financial retirement benefits varies with educational background: those with low education respond most strongly to an increase in the price of leisure.  相似文献   
99.
We investigate whether the choice of a business cycle measure affects estimates of the cyclicality of labour market flows. We exploit precise administrative data on individual labour market transitions and study the association of alternative business cycle measures with individual transitions between employment and unemployment. We find indeed substantial heterogeneities across business cycle indicators that may have affected the results of prior studies on labour market transitions.  相似文献   
100.
This article examines the role of remittances in income diversification strategies in Bolivia’s rural sector. Remittances can be consumed or invested by the recipient. As an investment, funds can be used for farming or to finance other nonfarm productions. In this article, we use a large and nationally representative survey to estimate the effect that remittances have on the probability of producing income from nonfarm activities (diversification) by using a bivariate probit model. Our evidence shows that remittances increase the probability that a rural family engages in nonfarm activities, at least in some regions of Bolivia. We also find evidence that the sender’s decision to remit and the recipient’s decision to diversify may be jointly determined. As such, this suggests that remittances may serve as a mechanism to overcome localized failures in Bolivia’s capital markets.  相似文献   
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