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The purpose of the current study is to analyze how the assistance that one's siblings provide to their parents impacts one's own contributions. Siblings' assistance is measured as the total combined number of hours and the total combined cash that one's siblings provide, excluding one's own level of contributions.

We use first differences and instrumental variables approaches to address unobserved heterogeneity and endogeneity of assistance provided to one's parents.

A 10 percent increase in siblings' time and cash assistance is associated with an increase in the individual levels of adult children's time contributions by about 6.72 percent and cash contributions by 7.43 percent.

Crowd-in is meaningful from a policy perspective as it suggests that upstream transfers are unlikely to crowd-out similar transfers from siblings. Private transfers are unlikely to decrease in response to public transfers.

Policy that incentivizes private transfers from one individual may lead to increased levels of transfers from their siblings. Policies such as tax incentives that encourage contributions from adult children are likely to have a magnified effect.

Our approach is novel in that we utilize data on full sibling sets using the children of the Health and Retirement Study respondents. This allows the consideration of crowding effects that transfers from siblings have. Other authors perform tests to determine whether or not altruistic transfer motives are present. With altruistic motives, public transfers are expected to crowd-out private transfers. Our approach focuses on crowding behavior regardless of the underlying motives.

The purpose of this paper is to examine publication patterns of scholarly literature related to academic libraries and development (i.e. funding), including publication trends over a five-year period, core journals and authorship, so that library directors and library development officers will have a basic collection of relevant resources.

The methodology consisted of journal article searches in three databases relating to the field of library information science with 2006-2010 as the date limiter. The primary search terms came from the topic of this study and were joined to secondary-level search terms by using the Boolean operator: AND. Secondary-level keywords originated from the literature review and the search process. Results were stored in an Excel file based on pre-determined categories and were evaluated based on the research questions.

There were 106 articles published on the topic of academic libraries and development authored by 164 individuals, pairs, groups or associations during the five-year period of 2006-2010. In 2010, the greatest number of articles (35) was published on the topic, but in 2008, the least number (14) was published.

This study takes the bibliometric analysis approach, which has rarely been used on the topic of academic libraries and development work with the specific focus on library funding. It provides a foundation for further research on the topic, as well as resources to be used by library practitioners.

This paper tries to find out the different research fronts that have recently defined the scientific area of organizational studies. These fronts represent the paradigms or theories that the current research in the most relevant journals is based on. A study of how trends develop in those journals is also done. Quite different from other typologies, this work has used an empirical method of analyzing the literature references found in the articles published in some of the most relevant journals in this field in recent years.

The purpose of this paper is to present a new vision-based control method, which enables delta-type parallel robots to track and manipulate objects moving in arbitrary trajectories. This constitutes an enhanced variant of the linear camera model-camera space manipulation (LCM-CSM).

After obtaining the LCM-CSM view parameters, a moving target’s position and its velocity are estimated in camera space using Kalman filter. The robot is then commanded to reach the target. The proposed control strategy has been experimentally validated using a PARALLIX LKF-2040, an academic delta-type parallel platform and seven different target trajectories for which the positioning errors were recorded.

For objects that moved manually along a sawtooth, zigzag or increasing spiral trajectory with changing velocities, a maximum positioning error of 4.31 mm was found, whereas objects that moved on a conveyor belt at constant velocity ranging from 7 to 12 cm/s, average errors between 2.2-2.75 mm were obtained. For static objects, an average error of 1.48 mm was found. Without vision-based control, the experimental platform used has a static positioning accuracy of 3.17 mm.

The LCM-CSM method has a low computational cost and does not require calibration or computation of Jacobians. The new variant of LCM-CSM takes advantage of aforementioned characteristics and applies them to vision-based control of parallel robots interacting with moving objects.

A new variant of the LCM-CSM method, traditionally used only for static positioning of a robot’s end-effector, was applied to parallel robots enabling the manipulation of objects moving along unknown trajectories.

This issue is dedicated to the memory of Luis J. Sanz and this editorial is made up of three parts: an account of his work with the journal, words from the editor (2001-2013), and a brief CV which he had written shortly before his passing.

Este número se dedica a la memoria de Luis J. Sanz y este editorial consta de tres partes. Un recuento de su trabajo con la revista, el recuerdo de la editora 2001-2013, y un breve CV que él mismo escribió poco antes de su muerte.

The Geography of Tourism in Spain is now at a par in terms of its scientific production with other European countries. Since the middle of the '80s the quality and volume of contributions is analogous to the rest of the European Union, although as a part of University Geography in Spain it has not achieved the level of dedication reached by other subjects considering the importance of tourist activities to the economy, the society and the territory of Spain. It could be said that the Geography of Tourism in Spain is in the international vanguard in dealing with Mediterranean coastal tourism, with the relationships between the residential real estate and tourism sectors and with aspects related to tourism and leisure in rural and protected areas.

Although most of the literature supports the existence of a substitutive relationship between exploration and exploitation, some authors suggest that this relationship is complementary (ambidexterity), and others argue that there is no relationship. This paper aims to introduce organizational innovation into the analysis and discusses which of these three relationships prevails.

Analyses were performed using data from Spanish Technological Innovation Panel for the period 2008-2013. It should be emphasized that the use of panel data is essential in the analysis of the interaction of exploration and exploitation, as exploration only makes sense in the long run. Econometric strategy uses a two-stage selection model, estimated using the Wooldridge’s (1995) consistent estimator for panel data with sample selection. To perform the test, the hypothesis uses the approach of complementarity.

The results show that the relationships exploration-organizational innovation and exploitation-organizational innovation are complementary, provided that the analysis is performed on companies that simultaneously carry out exploration and exploitation activities, respectively. This indicates that the achievement of ambidexterity is strongly conditioned by the simultaneous realization of organizational innovations.

Managers and policymakers should be aware that the simultaneous implementation of exploration and exploitation yields better results when the corresponding organizational innovations are also implemented.

This paper extends the empirical investigation of the relationship between exploration and exploitation, seen in conjunction with organizational innovation, and using the complementarity approach as a research tool.

This study aims to examine the direct and indirect effects of team-level sustainable leadership on employees’ organizational citizenship behavior (OCB) towards sustainability through team-level procedural justice and employees’ organizational commitment.

The study adopted a time-lagged approach, and data from 267 employees and 53 supervisors from 21 large manufacturing firms in Pakistan were collected. Furthermore, a multilevel modeling analysis was conducted to test the proposed hypotheses.

Sustainable leadership significantly and positively influences employees’ OCB towards sustainability. Empirical evidence confirmed that a procedural justice climate (PJC) and employees’ organizational commitment significantly mediate the relationship between sustainable leadership practices and employees’ OCB towards sustainability.

To the best of the authors’ knowledge, this study is the first to explore the multilevel role of sustainable leadership concerning OCB towards sustainability, PJC and organizational commitment.

This study analyzed the impact on the persistence of Chilean university students who had received a government-guaranteed loan (CAE).

Using academic and administrative data from 2016 to 2019, provided by 11 Chilean universities, a discrete-time survival model was constructed. The model was based on data of 5,276 students in the 2016 cohort and included sociodemographic variables, academic background prior to entering university and academic performance once in university. As a robustness check of our results to observable confounding, the analysis was repeated using a control group constructed using propensity score matching (PSM).

The results reveal that students who receive a bank loan (CAE) were more likely to remain in undergraduate studies for at least the first two years of university, as opposed to their peers who did not receive financial aid. In addition, they show the importance of academic performance in retention.

The article advances in the identification of the impact of bank loans on permanence. Although previous research has evaluated the impact of the CAE, it has been conducted on small samples of students. These studies also lacked student records associated with their academic performance at the university. The present research overcomes both weaknesses, allowing us to estimate the impact of the CAE on a larger population of students that is representative of the system.

In this paper, the authors present an empirical framework that incorporates different factors of the impact of COVID-19 on small- and medium-sized enterprises (SMEs) in La Rioja, Spain, in relation to the value chain, gender and family business and allows the evaluation of these impacts on the SMEs' outcomes.

The authors conduct exploratory research based on phone interviews with 329 business managers from SMEs in La Rioja (Spain), from June 1 to June 30 2021, using ordinary least squares linear regression and matching procedures to test the study hypotheses.

The results show that the impact of COVID-19 related to primary activities in adding value, such as inbound logistics, operations and marketing, have a positive influence on innovation outcomes in SMEs, as do female managers. Family SMEs present poorer innovation outcomes.

At the organizational level, this paper may be of interest to management, and at the national and regional levels to policymakers, since it could help to develop policies that support SMEs' sourcing, operations and marketing in order to prepare for potential value chain disruptions. Additionally, this research may help decision-makers to foster and promote innovation in SMEs as a way of ensuring their resilience.

In this paper, the authors provide novel evidence about the effect of COVID-19 in SMEs. Moreover, it has been shown that the COVID-19 pandemic has triggered the redefinition of supply chains at the organizational level.