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491.
Marx, Marxism and the cooperative movement 总被引:1,自引:0,他引:1
This paper has a dual aim: first, to draw attention to a numberof passages in which Marx explicitly extolled the cooperativemovement and thereby confute the wrong but widely held assumptionthat Marx was inimical to the market and rejected cooperationas a production mode even for the transition period; second,to argue that the continuing neglect of Marxists both of thecooperative movement and of the passages from Marx (and Engels)that present a system of producer cooperatives as a new productionmode can be traced back in part to the late emergence of aneconomic theory of producer cooperatives. 相似文献
492.
Bruno Wichmann Peter Boxall Scott Wilson Orsolya Pergery 《Environmental and Resource Economics》2017,68(4):1111-1144
Conservation auctions have the potential to increase the efficiency of payments to farmers to adopt conservation-friendly management practices by fostering competition among them. The literature considers bidders that have complete information about the costs of adoption and optimal bidding behavior reflects this information advantage. Farmers seek information rents and bids decrease when risk aversion increases because farmers are more averse to losing the auction. We contribute to the literature by allowing for cost risk. Our paper shows that farmers must balance the risk of losing the auction (thus foregoing information rent) with the risk of submitting a bid that is not high enough to pay the costs of adopting conservation practices (thus incurring losses). We design an experiment to trade off these two risks and examine how risk aversion affects bidding behavior when participants face different sources and levels of risk. Our experiment contributes to a small literature on experimental auctions with risky product valuations. We find that participants decrease their bids as risk aversion increases, even in auctions with cost risk, suggesting that the risk of losing the auction dominates. These findings uncover new challenges for the practical implementation of conservation auctions as an efficient policy instrument. 相似文献
493.
Bruno van Pottelsberghe de la Potterie Didier François 《Journal of Industry, Competition and Trade》2009,9(4):329-355
The objective of this paper is to assess to what extent the cost of patenting affects the demand for patents. The empirical
analysis, which focuses on the patent systems of the USA, Japan, and Europe in 2003, leads to the following methodological
and empirical conclusions: (1) for a proper international comparison, the size of the market and the average number of claims
included in a patent must be accounted for; (2) when the cost per claim per capita (the 3C-index) is considered, a negative
linear relationship appears between the cost of patenting and the number of claims that are filed; (3) after the grant of
a patent by the EPO, the translation, validation and transaction costs induced by an effective protection in several European
countries witness a highly fragmented and very expensive European market for intellectual property; (4) for a patent designating
13 European countries, the 3C-index is about ten (two) times higher than in the US (Japanese) system (for process and translation
costs up to the grant); (5) The European market being more than twice as large as the US market in terms of inhabitants, the
3C-index suggests that there would be a clear justification for higher nominal examination fees at the EPO, that would ensure
the pursuit of a rigorous granting process. 相似文献
494.
REMOVING THE “VEIL OF IGNORANCE”: NONLINEARITIES IN EDUCATION EFFECTS ON GENDER WAGE INEQUALITIES
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A large literature studies the mean gender wage gap in developing countries and finds mixed evidence about the role of education policies in closing gender earnings inequalities. We contribute to this literature by exploring two types of nonlinearities in wage earning regressions: (1) nonlinearities on the effects of education on expected earnings along the distribution of education endowments; and (2) heterogeneities on the contributions of education to the gender wage gap at different quantiles of the wage distribution. Our analyses provide new insights on how these nonlinear effects can be used to set up better targeted gender and development policies. (JEL I26, C14) 相似文献
495.
One of the most enduring problems in econometrics is how to properly account for heterogeneity among firms. Threshold regression models are intuitively appealing methods to deal with this issue. We consider a fixed-effect panel data stochastic frontier model (Schmidt and Sickles, 1984; Martin-Marcos and Suarez-Galvez, 2000) and, relying on Hansen (1999, 2000a), we propose an estimator that accommodates multiple thresholds. Our model assumes absence of any unmeasured time invariant heterogeneity across firms as in Greene (2005, p. 277). Slope and threshold parameters can be estimated using a within estimator combined with a grid search over the threshold parameters. Testing for threshold effects is problematic because threshold parameters are not identified under the null hypothesis, a case of the so-called Davies' problem. We apply the bootstrap procedure proposed by Hansen (1999, 2000a) to test for the presence of thresholds. An asymptotic confidence set for the threshold parameter can be obtained by inverting an LR test, using the distribution result presented in Hansen (1999, 2000a). Our empirical application features a panel of Quebec dairy farms. We use farm size as the threshold variable. The presence of a trend in the specification matters for the determination of the number of thresholds. Technical efficiency scores and rankings of farms estimated from competing model specifications are highly correlated and do not vary significantly across groups of farm sizes defined by the threshold parameter values. 相似文献
496.
The purpose of this paper is to investigate some issues of wage setting in order to assess if nominal inertia and wage flexibility characterise the Italian supply side, using multivariate cointegration models. Our estimates indicate that an explicit distinction between stationary and non-stationary variables and a joint analysis of long-run and short-run structure is crucial for achieving clearer results. To this end, we use quarterly time series data for industry sector 1976:1–1993:4. Interesting results have been found concerning the empirical evidence of a long-run wage curve and the existence of a Phillips curve, through adopting alternative order reduction of the I(2) wage and price variables. Moreover, some insights on regional (North-South) unemployment effects are pointed out and discussed. 相似文献
497.
Standard economic wisdom generally stresses the benefits ofincreased competition on the product market. This paper proposesa model of monopolistic competition with an endogenous determinationof workers flows in and out of unemployment, where wages aredetermined according to an efficiency wage mechanism. We showthat an increase in product market competition boosts the hiringrate as well as the separation rate thus reducing job security.Hence, the efficiency wage schedule compatible with more competitionshifts upward. An adverse effect on workers' incentive is atwork which pushes real wages up to the point that increasedcompetition may indeed generate employment losses rather thangains. 相似文献
498.
Given a multi-dimensional Markov diffusion X, the Malliavin integration by parts formula provides a family of representations of the conditional expectation E[g(X
2)|X1]. The different representations are determined by some localizing functions. We discuss the problem of variance reduction within this family. We characterize an exponential function as the unique integrated mean-square-error minimizer among the class of separable localizing functions. For general localizing functions, we prove existence and uniqueness of the optimal localizing function in a suitable Sobolev space. We also provide a PDE characterization of the optimal solution which allows to draw the following observation : the separable exponential function does not minimize the integrated mean square error, except for the trivial one-dimensional case. We provide an application to a portfolio allocation problem, by use of the dynamic programming principle.Mathematics Subject Classification:
60H07, 65C05, 49-00JEL Classification:
G10, C10The authors gratefully acknowledge for the comments raised by an anonymous referee, which helped understanding the existence result of Sect. [4.2] of this paper. 相似文献
499.
Bruno Parolin 《Socio》1992,26(4):231-239
This paper examines differences between the U.S. and Australian urban landscape in terms of the relationship between urban structure and the effectiveness of public transportation. A replication study is undertaken that tests the validated hypothesis from a U.S. study that urban travel corridor social heterogeneity reduces patronage of public transportation because of resident concerns with social composition of passengers and effects on the travel privacy dimension. A causal model is identified for the city of Sydney that specifies enogenous and endogenous variables, as per the U.S. study, which affect bus and rail use. Results do not lead to the acceptance of the hypothesized relationship. The presence of social heterogeneity in Sydney travel corridors does not deter residents within the study corridors from using the bus or train for the journey to work, nor do they appear to affect longer term decisions on car ownership. Bus patronage was shown to be dependent on social heterogeneity factors while rail use was associated with car owning households. These results highlight differences in urban spatial structure and travel patterns between Sydney and cities in the U.S. study, and suggest differential effects of changes in urban spatial structure and policy responses. 相似文献
500.
Bruno Fritsch 《Journal of Economics》1960,20(1-2):1-3
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