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91.
Yves Balasko 《Journal of Mathematical Economics》1978,5(2):153-172
Qualitative comparative statics amounts to a study of the qualitative properties of the Debreu mapping, i.e., the restriction of the projection (p,ω)?ω to the equilibrium manifold. We show that a natural framework for such a study is Thom's envelope theory which generalizes the theory of planar curve envelopes. 相似文献
92.
This paper proposes a multiple-output Symmetric Generalised McFadden (SGM) cost function, incorporating both exogenous and endogenous technological change. Whilst exogenous technological change is captured by the usual time trend, endogenous or price-induced technological change is cast within a partial-adjustment framework involving lagged input prices. The study points to various dimensions or components of technological change, and allows to disentangle pure factor substitution, given the state of the technology, from factor substitution due to price-induced changes in technology. Under the conditions of non-jointness in input quantities, the model further allows to identify technological change biases for each output separately. An empirical application is presented in which the proposed model is applied to time-series data on the feed manufacturing industry in Belgium. To improve on the econometrics, the SGM cost function also incorporates linear splines. 相似文献
93.
Anatoli Vassiliev Author VitaeAuthor Vitae Yves Flückiger Author Vitae José V. Ramirez Author Vitae 《Socio》2006,40(3):169-186
Regional employment offices provide placement services to job-seekers and employers and organize active labor market programs. In this paper, we carry out a quantitative evaluation of the employment offices’ performance in Switzerland based on production efficiency measures. We use Data Envelopment Analysis (DEA) to estimate the performance of all employment offices and then account for factors in the local operating environment that are outside managerial control. This approach, and the ranking of employment offices, may easily be interpreted by policymakers and provides guidelines for raising the efficiency of the public employment service. Our findings suggest that there is considerable room for improved efficiency in employment service, which could lead to a lower level of structural unemployment. We also find that differences in the external operating environment have a significant influence upon the efficiency of employment offices. 相似文献
94.
Conclusion This paper investigates the relation between mismatch and sectoral hiring functions. Traditionally, the indices used to measure structural mismatch were constructed by assuming that the hiring functions are identical across sectors. However, both theoretically and empirically, there is no reason to believe that the hiring behavior of the firms or the search methods of the workers are identical across sectors. Evidence for this is provided in the Appendix of this paper where it is shown that theUV curves for the different regions in Great Britain and different sectors in Switzerland are not identical. Brunello [1990] also shows that the hiring functions do not have to be identical. This paper also demonstrates that it may not be possible to eliminate structural unemployment totally when the hiring functions across sectors are non-identical. In other words, total hiring may be maximized even if theV/U ratios are not equalized across sectors. This conclusion is important as it highlights that the indices used in empirical work to measure structural mismatch may be seriously flawed.This paper develops an index for measuring mismatch which is rooted in the theory of hiring functions and utilizes the approach of measuring angle between vectors by the use of cos() functions. The FH index presented in this paper is based on a simple arithmetic mean of regional or sectoral cos() functions. It has been estimated for several European countries, and the empirical results highlight some interesting conclusions concerning regional mismatch in these countries. 相似文献
95.
Despite various corporate collapses over the last decades, risk management is increasingly influential across organizations worldwide, as if the apparatus’ credibility was impermeable to scandals that, from critical angles, cast doubt on its efficacy. Relying on a cultural perspective of analysis highlighting the range of social processes that protect prevailing institutions’ legitimacy from aberrations, we examined the sense-making approaches employed by corporate boardroom actors to maintain their confidence in the credibility of the risk management apparatus despite being exposed to a continuous flow of corporate failures pointing to risk management efficacy limitations. Specifically, we conducted 35 interviews with corporate board stakeholders, mostly board members and corporate consultants. Our analysis indicates that actors involved in risk management processes tend to interpret aberration cases through perspectives that put the blame on some implementation deficiency, thereby ensuring that risk management's core assumptions are not questioned. These perspectives point to a defensive system of thought grounded in the director and consultancy communities, whose main referents are subject to intense work and re-conceptualization in the aftermath of aberrations, thereby providing community members with the means to make sense of the frictions of organizational life in ways that maintain the legitimacy of the risk management apparatus. 相似文献
96.
We propose a spatial search-matching model where both job creation and job destruction are endogenous. Workers are ex ante identical but not ex post since their jobs can be hit by a technological shock which decreases their productivity. They reside in a city, and commuting to the job center involves both pecuniary and time costs. As a result, workers with high wages are willing to live closer to jobs to save on time commuting costs. We show that, in equilibrium, there is a one-to-one correspondence between the productivity space and the urban location space. Workers with high productivities and wages reside close to jobs, have low per distance commuting costs and pay high land rents. We also show that higher per distance commuting costs and higher unemployment benefits lead to more job destruction. 相似文献
97.
This study analyses the degree to which change in the organizational context, content and location (both of the individual within the organization and the organization within the field) of professional work has contributed to variation in attitudes toward professional ideology and institutions. Through an online survey of Canadian chartered accountants we observe that, contrary to current accusations, a majority of accounting professionals remain committed to their profession, despite profound changes in the context, content and location of their work. We do find, however, that the strongest espoused deviation from core professional values and logics has occurred in traditional work contexts (i.e. public accounting firms), and for the distinctive value of commitment to independence enforcement, the deviation is most pronounced in the elite core of the profession – the Big Four professional service firms. Accountants in higher ranks also tend to identify more with commercialistic values. We speculate on the implications these findings hold for the professional project of accountancy. 相似文献
98.
99.
Abstract The paper proposes and applies statistical tests for poverty dominance that check for whether poverty comparisons can be made robustly over ranges of poverty lines and classes of poverty indices. This helps provide both normative and statistical confidence in establishing poverty rankings across distributions. The tests, which can take into account the complex sampling procedures that are typically used by statistical agencies to generate household‐level surveys, are implemented using the Canadian Survey of Labour and Income Dynamics (SLID) for 1996, 1999, and 2002. Although the yearly cumulative distribution functions cross at the lower tails of the distributions, the more recent years tend to dominate earlier years for a relatively wide range of poverty lines. Failing to take into account SLID’s sampling variability (as is sometimes done) can inflate significantly one’s confidence in ranking poverty. Taking into account SLID’s complex sampling design (as has not been done before) can also decrease substantially the range of poverty lines over which a poverty ranking can be inferred. 相似文献
100.
A multilateral model of trade with both commodity flows and partial mobility of factor flows is set up. This model is used to develop factor endowment/output relationships as well as commodity/factor price relationships. Welfare consequences of these parametric shifts are examined. The model is built on the customs union framework which involves three countries and both commodity and factor flows. Owing to spillover effects in multilateral trade models, many nontraditional results are obtained. Many developed countries accept skilled and unskilled migrants from other countries. These migrants are generally accepted on a quota system. Moreover, it has been established that an increase in the migrant quota in the presence of factor mobility may raise or lower the output and welfare in the country not receiving migrants. In fact it is shown that the non‐migrant receiving country could be immiserized due to loss of capital. The main message of this paper is that in a multilateral trade framework there exist international spillover effects which must be taken into consideration in national policymaking. 相似文献