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31.
Selection of a Representative Value Function for Robust Ordinal Regression in Group Decision Making 总被引:2,自引:1,他引:1
In this paper, we introduce the concept of a representative value function in a group decision context. We extend recently proposed methods UTAGMS-GROUP and UTADISGMS-GROUP with selection of a compromise and collective preference model which aggregates preferences of several decision makers (DMs) and represents all instances of preference models compatible with preference information elicited from DMs. The representative value function is built on results of robust ordinal regression, so its representativeness can be interpreted in terms of robustness concern. We propose a few procedures designed for multiple criteria ranking, choice, and sorting problems. The use of these procedures is conditioned by both satisfying different degrees of consistency of the preference information provided by all DMs, as well as by some properties of particular decision making situations. The representative value function is intended to help the DMs to understand the robust results, and to provide them with a compromise result in case of conflict between the DMs. 相似文献
32.
Ricardo D. Salvatore 《Explorations in Economic History》2004,41(3):233-255
Using height data for recruits of a principal regiment at Buenos Aires, the paper revises the question of welfare in Argentina during the period 1900-1934. The period of rapid export-led growth (1900-1913) showed an absolute deterioration of “net nutrition.” On the other hand, the inter-war period (1918-1939), generally characterized as a period of economic “delay” or “retardation,” presented a steady improvement in nutrition and health conditions. Two powerful external shocks, World War I and the Great Depression, had a minimal impact on the biological welfare of Argentine recruits. Economic growth generated important regional and social inequalities. 相似文献
33.
In the Italian Time use survey, carried out by Istat (Italian National Statistical Institute) in 2002–2003, the coding process
translates the sentences reported by the respondents into codes, but association text-code is not a one to one easy linkage,
because the respondents describe the activities performed using the common language. So, a process of data editing is requested
in order to improve data quality. The possibility to use sentences (recorded in the data entry) has definitely improved the
data editing process.
The main questions to analyse concern:
This paper shows methodological and contextual choices in order to build the process of data editing. In particular, it is
focused on the analysis of techniques and deterministic rules adopted and on the analysis of imputation system to correct
adequately the wrong codes, with reference to the entire diary.
This paper was presented at the XXVI IATUR (International Association for Time Use Research) Conference held in Rome, 27–29
October 2004. The authors share contents and views expressed in this paper. However, the paragraphs are so drafted: Salvatore
F. Allegra drew up the paragraphs 1, 2, 3, 7; Barbara Baldazzi drew up the paragraphs 4, 5, 6, 8. Salvatore F. Allegra and
Barbara Baldazzi drew up the paragraph 9. 相似文献
(a) | particular ancillary codes used by coders to point out daily diary’s problems; |
(b) | incompatibility between codes and codes and between codes and text; |
(c) | errors in the intervals’ sequences. |
34.
Giovanni Dosi Orietta Marsili Luigi Orsenigo Roberta Salvatore 《Small Business Economics》1995,7(6):411-436
Industrial economics is a rich source of puzzles for economic theory. One of them — certainly the most discussed — regards the co-existence of firms (and plants) of different sizes, displaying rather invariant skewed distributions. Other puzzles, however, concern the sectoral specificities in industrial structures, the persistence of asymmetric corporate performances and the dynamics of entry and exit. The paper reports some preliminary results on evolutionary modeling of the links between the microeconomics of innovation, the patterns of industrial change and some observable invariances in industrial structures.First, the paper reviews a few of these empirical regularities in structures and in the patterns of change. Second, the paper discusses the achievements and limits of interpretations of the evidence based on equilibrium theories. Finally, it presents a model where these regularities are explained as emergent properties deriving from non equilibrium interactions among technologically heterogeneous firms. Moreover, simulation exercises show that also the intersectoral variety in the observed industrial structures and dynamics can be interpreted on the grounds of underlying specificities in the processes of technological learning — which is called technological regimes — and of the processes of market interactions — i.e. market regimes.This research has undertaken within an on going project sponsored by the Italian Research Council (CNR, Progetto strategico,Cambiamento tecnologico e sviluppo economico). Support by the Consortium on Competitiveness and Cooperation Centre for Research in Management, University of California at Berkeley is also gratefully acknowledged. 相似文献
35.
Patterns and Determinants of International Fragmentation of Production: Evidence from Outward Processing Trade between the
EU and Central Eastern European Countries. — In this paper we investigate a specific form of international fragmentation of
production, that is, the form giving rise to international trade for reasons of processing. Data on textile and apparel trade
between EU countries and Central European countries show that the magnitude of trade for reasons of processing greatly overshadows
that of final trade. The industry appears to be affected by a process of international fragmentation whose understanding requires
a new definition of the concept of comparative advantage. Our analysis suggests that this fragmentation is activated by labor
cost differentials as well as by reasons of geographic and cultural proximity. 相似文献
36.
Individual consumers have quickly embraced the practice of using a variety of channels through which to make their purchases, as 65-70% of them are multichannel shoppers. Indeed, multichannel shoppers (defined as those who utilize a variety of different purchasing channels, including bricks-and-mortar stores, the telephone, and the Internet) are now in the majority, and spend significantly more than single-channel shoppers. Given this reality, it is critical that organizations adopt a multichannel mindset and effectively employ a multichannel marketing program, as these can enhance profitability, the customer experience, and customer satisfaction. It is the aim of this article to provide firms with guidance in developing an effective multichannel mindset and in designing a multichannel marketing program for serving end-consumers in business to consumer (B2C) situations. 相似文献
37.
38.
This article identifies six fundamental indicators that might predict a financial crisis similar to the one that affected the emerging markets of Southeast Asia. Our empirical analysis shows that the 1997 Asian crisis could have been predicted. Probit estimation reveals that a small number of common indicators can forecast a financial crisis well. The estimation gives estimates that are robust to either cross-section or panel data. We suggest an aggregate indicator that combines all the individual indicators and calculates the optimal thresholds for the indicators. This aggregate indicator has similar predictive properties and reduces the calculations to determine the probability of crisis. 相似文献
39.
40.
Studying a relatively under-researched aspect in economics, this paper examines the nexus between corruption and academic freedom. Our main hypothesis is that greater corruption undermines academic freedom and we test this hypothesis using data for 104 nations from 2012 to 2018. Our results support the main hypothesis, and this finding also generally holds across alternative aspects of academic freedom. Another contribution of this work lies in dissecting the direct and indirect (through corruption) effects of various drivers of academic freedom. Finally, additional insights are gained by considering different dimensions of academic freedom and how they are impacted by corruption. 相似文献