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131.
Thanks to the access to labeled orders on the CAC 40 index future provided by Euronext, we are able to quantify market participants contributions to the volatility in the diffusive limit. To achieve this result, we leverage the branching properties of Hawkes point processes. We find that fast intermediaries (e.g. market maker type agents) have a smaller footprint on the volatility than slower, directional agents. The branching structure of Hawkes processes allows us to examine also the degree of endogeneity of each agent behavior, and we find that high-frequency traders are more endogenously driven than other types of agents. 相似文献
132.
ABSTRACTIn this paper, we unify two popular approaches for the definition of actuarial ruin with implementation delays, also known as Parisian ruin. Our new definition of ruin includes both deterministic delays and exponentially distributed delays: ruin is declared the first time an excursion in the red zone lasts longer than an implementation delay with a deterministic and a stochastic component. For this Parisian ruin with mixed delays, we identify the joint distribution of the time of ruin and the deficit at ruin, therefore providing generalizations of many results previously obtained, such as in Baurdoux et al. (2016) and Loeffen et al. (in press) for the case of an exponential delay and that of a deterministic delay, respectively. 相似文献
133.
Lourenço S. Paz 《Applied economics》2013,45(4):408-419
The literature concerning the effect of tariffs on the inter-industry wage premium has not addressed the role of total factor productivity (TFP) in determining both the wage premium and tariffs. This omission not only overlooks an important determinant of wage premium but also invalidates the use of the pre-reform tariff level as an instrument for the change in tariffs. Based on an analysis of Colombian data, I find that including TFP in the estimated model of the effects of tariffs on the wage premium leads to a 41% decrease in the effect of tariffs on the inter-industry wage premium relative to the model that omits TFP. More specifically, a 10 percentage point decrease in tariffs reduces the wage premium by 1.01%, whereas a 10% increase in TFP raise wage premium by 1.6%. This finding suggests the importance of using policies that boost productivity to offset the effect of tariffs on the wage premium. 相似文献
134.
François-Éric Racicot 《Applied economics》2013,45(10):981-989
Econometricians have long recognized the need to account in some way for measurement errors, specification errors and endogeneity to ensure that the ordinary least squares estimator is consistent. This article introduces a new generalized method of moments estimator that relies on robust instruments to estimate panel data regression models containing errors in variables. We show how this GMM approach can be generalized for the panel data framework using higher moments and cumulants as instruments. The new instruments, engineered for greater robustness, are proposed to tackle the pervasive problem of weak instruments. 相似文献
135.
François Bourguignon Francisco H. G. Ferreira Marta Menéndez 《Review of Income and Wealth》2013,59(3):551-555
This note acknowledges and corrects a programming error in our paper “Inequality of Opportunity in Brazil” (Review of Income and Wealth, 53(4), 585–618, 2007). Once the error is corrected, our bounds approach to the identification of individual model parameters in the presence of omitted variable biases is much less useful than indicated in the original paper. In the specific context of the measurement of inequality of opportunity, this implies that the decomposition of overall inequality of opportunity into direct and indirect effects is not reliable. However, the parametric approach introduced in our paper remains useful for obtaining a lower‐bound estimate of overall ex‐ante inequality of opportunity, as proposed by Ferreira and Gignoux (2011). 相似文献
136.
Ramiro Gonçalves José Martins Jorge Pereira Manuel Au-Yong Oliveira João José P. Ferreira 《Journal of Business Ethics》2013,113(2):363-375
The research team measured the enterprise web accessibility levels of the Forbes 250 largest enterprises using the fully automatic accessibility evaluation tool Sortsite, and presented the compliance of the evaluated websites to WCAG 1.0, WCAG 2.0 and Section 508 accessibility levels. Given the recent attention to organizational leaders having ethical duties towards their dedicated employees, we propose that ‘societal citizenship behaviour’ concerns ethical duties of organizational leaders towards society in general and in particular to those who have less means to assert their needs. In effect, we found enterprise website accessibility levels to be in need of significant improvement. An interpretation of a positive path forward to better enterprise website accessibility levels is put forth based on a focus-group interaction and using BNML—a novel Business Narrative Modelling Language. 相似文献
137.
Başak Dalgıç Burcu Fazlıoğlu 《The journal of international trade & economic development》2013,22(5):638-659
We examine the effects of international trading activities of firms on creating productivity gains in Turkey by using a recent firm-level data set over the period 2003–2010. We establish treatment models and investigate the productivity improvements of firms through trade by using propensity score matching techniques together with difference-in-difference estimates. Three different groups of treatment are constructed: (1) firms that are involved only with import activities, (2) firms that are involved only with export activities and (3) firms that are involved with both export and import activities. The results of the study suggest that both exporting and importing have positive significant effects on total factor productivity (TFP) and labour productivity (LP) of firms. Importing is found to have a greater impact on productivity of firms compared to exporting. Further, two-way trade is found to have more significant effects than those of one-way trade on firm productivity. Finally, our results indicate that international trade has greater impact on LP rather than TFP of firms. 相似文献
138.
Henrik Selsøe Sørensen Lotte Holm Peter Møgelvang-Hansen Daniel Barratt Françoise Qvistgaard Viktor Smith 《International Review of Retail, Distribution & Consumer Research》2013,23(3):291-304
The ‘average consumer’ is referred to as a standard in regulatory contexts when attempts are made to benchmark how consumers are expected to reason while decoding food labels. An attempt is made to operationalize this hypothetical ‘average consumer’ by proposing a tool for measuring the level of informedness of an individual consumer against the national median at any time. Informedness, i.e. the individual consumer's ability to interpret correctly the meaning of the words and signs on a food label is isolated as one essential dimension for dividing consumers into three groups: less-informed, informed, and highly informed consumers. Consumer informedness is assessed using a 60-question test related to information found on a variety of Danish everyday food products and divided into factual questions and informedness about signpost labels. A test was made with 407 respondents who participated in four independent studies on fairness in consumer communication, and the average score for all was 57.6% of correct answers. A score of 64% and beyond would place a consumer in the upper quartile (the group of highly informed consumers), whereas a score of 52% or below would place the individual in the lower quartile (the group of less-informed consumers). Female respondents performed better than males on label recognition, and those around 40 years of age irrespective of gender performed best on factual knowledge, whereas those aged around 30 performed best on label recognition. It is foreseen that independent future studies of consumer behavior and decision making in relation to food products in different contexts could benefit from this type of benchmarking tool. 相似文献
139.
Private placements provided by institutional or individual accredited investors are becoming an important financing tool for small public firms worldwide. However, private placement issuers offer poor average returns. We explain this puzzle using 2,987 traditional private placements by Canadian small public firms over a decade. We observe significant long-run post-issue underperformance using a classic factor pricing model. This underperformance is partially erased when the returns are adjusted to consider the issuers’ high level of investment, and to include the discount granted to private investors. We split the sample by the glamour/value dimension and by the firms’ investment activity. Only glamour firms with high investment activity underperform in the long run. Private investors obtain positive returns on placements in value and high investment firms. However, they overestimate investment projects of glamour firms. 相似文献
140.
Meltem Dayioğlu 《Oxford Development Studies》2013,41(2):195-210
Substantial improvements have taken place in the employment and schooling of children in Turkey. Decomposition analysis based on data from two time periods shows that a substantial part of the drop in child labour and over half of the increase in school enrolment can be attributed to the changing cost and benefit structures of work and schooling rather than to changing population characteristics. This paper establishes that work and schooling are incompatible activities and that the negative association between them has increased over time. The observed changes are attributed to the extension of compulsory schooling and the ban on child labour. 相似文献