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排序方式: 共有135条查询结果,搜索用时 140 毫秒
1.
The agro‐food sector has experienced a profound transformation of contractual arrangements along the value chain, coinciding with important technological innovations and product quality upgrading. Our understanding of the impact that this transformation has had on trade flows in the agricultural sector is very limited. In particular, we have limited knowledge about the extent to which the patterns in agro‐food trade have been driven by the quality of contractual institutions. Using existing measures which capture the sensitivity of agro‐food products to contractual imperfections, we show that countries with better contract enforcement specialise in the production of food which requires higher level of relationship‐specific investments. We also find that countries with better contracting institutions and producing contract‐intensive goods specialise in exporting high quality foods. In addition, we show that the quality of contracting institutions might importantly affect the process of product quality upgrading. 相似文献
2.
This paper provides a further empirical evaluation of the Neoclassical theory of distribution as opposed to Marx‐biased technical change (MBTC) using a series of panel estimators. We argue that a panel data analysis is instrumental in increasing the efficiency and validity of the test. Our results generalize previous findings in providing support for MBTC and against the Neoclassical theory of income distribution. 相似文献
3.
Daniele Massacci 《Oxford bulletin of economics and statistics》2019,81(6):1376-1400
This paper studies the empirically relevant problem of estimation and inference in diffusion index forecasting models with structural instability. Factor model and factor augmented regression both experience a structural change with different unknown break dates. In the factor model, we estimate factors and loadings by principal components. We consider least squares estimation of the factor augmented regression and propose a break test. The empirical application uncovers instabilities in the linkages between bond risk premia and macroeconomic factors. 相似文献
4.
Ciasullo Maria Vincenza Troisi Orlando Grimaldi Mara Leone Daniele 《The International Entrepreneurship and Management Journal》2020,16(4):1167-1195
International Entrepreneurship and Management Journal - This paper analyses the TrentoSmartCity project to redefine Trento (an Italian municipality) as a smart community according to an ecosystems... 相似文献
5.
Intereconomics - Italy, which is sometimes considered a laggard in terms of social and economic reforms, can boast a pension system that is, by and large, functioning sufficiently well in terms of... 相似文献
6.
Climate Change,Innovation, and Economic Growth: The Contributions of William Nordhaus and Paul Romer
ABSTRACTWilliam Nordhaus and Paul Romer shared the 2018 Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel for their work on long-run macroeconomic analysis. Nordhaus adapted the neoclassical growth model to study climate change, while Romer developed a model of innovation-based growth. The authors provide two distinct explanations of what drives growth, and employ contrasting methodologies for interpreting the results of their mathematical models. Macroeconomic policy in general, and climate policy in particular, would benefit from better integrating the theory and methods of these two laureates. 相似文献
7.
This paper introduces a new family of portmanteau tests for serial correlation. Using the wavelet transform, we decompose the variance of the underlying process into the variance of its low frequency and of its high frequency components and we design a variance ratio test of no serial correlation in the presence of dependence. Such decomposition can be carried out iteratively, each wavelet filter leading to a rich family of tests whose joint limiting null distribution is a multivariate normal. We illustrate the size and power properties of the proposed tests through Monte Carlo simulations. 相似文献
8.
Opt Out or Top Up? Voluntary Health Care Insurance and the Public vs. Private Substitution 下载免费PDF全文
We investigate whether in a mixed insurance system, people enrolled into voluntary health care insurance (VHI) substitute public consumption with private (opt out) or just enlarge their private consumption without reducing reliance upon public provisions (top up). We specify a joint model for public and private specialist visits counts, allowing for different degrees of endogenous supplementary insurance coverage. We find evidence of opting out: richer and wealthier individuals consume more private services and concomitantly reduce those services publicly provided through selection into for‐profit VHI. Accounting for VHI endogeneity in the joint model of the two counts is crucial to this conclusion. 相似文献
9.
Daniele Tavani 《Structural Change and Economic Dynamics》2012,23(2):117-126
In a simple one-sector, two-class, fixed-proportions economy operating at full capacity, wages are set through generalized axiomatic bargaining à la Nash (1950). As for choice of technology, firms choose the direction of factor-augmenting innovations to maximize the rate of unit cost reduction (Kennedy, 1964, Funk, 2002). The aggregate environment resulting by self-interested decisions made by economic agents is described by a two-dimensional dynamical system in the employment rate and output/capital ratio. The economy converges cyclically to a long-run equilibrium involving a Harrod-neutral profile of technical change, a constant rate of employment of labor, and constant input shares. The type of oscillations predicted by the model matches qualitatively the available data on the United States (1963–2003). Institutional change, as captured by variations in workers’ bargaining power, has a positive effect on the rate of output growth but a negative effect on employment. 相似文献
10.
Daniele Besomi 《European Journal of the History of Economic Thought》2013,20(1):92-115
In 1926 and 1936 Sraff and Keynes attacked the methodological core of traditional economic theory by showing that the premises of partial equilibrium analysis were mutually inconsistent. this paper aims to show that Harrod neglected Sraffa and Keynes's logical arguments, and only admitted that the tacit assumptions under discussion restricted the domain of validityof the theory to special cases: perfect competition and statics. He then proceeded to generalize the theory to imperfect competition and dynamics by applying the principles (but not the instruments) of traditional analysis. The definition of these domains thus aimede at rescuing as mush as possible from the orthodox approach. 相似文献