我国房地产价格发展趋势研究

 本文从房地产价格的相关理论出发，主要从房地产需求、房地产供给、房地产金融和房地产宏观调控等角度对影响房价的因素进行了分析，并从实证角度分析了各因素对房价的影响。本研究运用近10年房地产价格季度数据和时间序列模型对房地产价格发展趋势进行预测，最后提出房地产价格发展预警和稳定房价的建议。     

Buying Citizenship? Chinese Golden Visa Migrants in Portugal

In 2011, Portugal launched a residence permit programme to attract foreign investment from non-EU citizens, with Chinese business migrants representing those taking most advantage of this initiative. This paper analyses this policy measure and assesses its social consequences, as a new way that Chinese migrants have to enter Portugal. Firstly, we characterise this programme by identifying its principles and legal requirements, using official data from 2012 to 2018. We then describe the emergence of this type of residence permit as a response to the financial crisis of 2011, and as part of a neoliberal political rationality that has guided a governance model since this time. Next, we characterise the profile of Chinese citizens who benefit from this initiative and claim residence permits on the basis of their economic power. Finally, we discuss the social and political implications of this kind of entrance to Portugal, to provide some insights for policymakers.     

市场转型下的老年供养研究

现代化理论预测未来家庭纽带会减弱,对老人的家庭供养会逐渐减弱。我们认为市场转型过程中,子女的人力资本和收入的快速提高有助于供养老人。利用2005年全国1%人口抽样调查数据,本文对60岁以上老年人口的主要生活来源进行了深入分析。研究表明,城市老年居民主要靠离退休金,镇和农村老年人仍有一半靠家庭供养,农村另有40%的老人依靠自我劳动生活。Logistic回归的结果显示农村家庭中子女的劳务迁移提高了老年人的家庭供养比。此外,农村、女性、高龄、低教育老人的家庭供养比高,而城市,男性,低龄,和教育程度较高的供养比低。分城乡老人家庭供养比,农村在不发达的西部最高,城市在发达的东部最高,反映家庭供养U型发展趋势。面对老人比例激增的局面,政府应积极扩大社会养老保障的覆盖面,加强扶持老年弱势群体,减轻家庭养老负担。     

Assessing Progress Towards SDGs Implementation Using Multiple Reference Point Based Multicriteria Methods: The Case Study of the European Countries

Social Indicators Research - To achieve the UN 2030 Agenda Goals, and considering their complexity and multidisciplinary, Multi-criteria analysis appears to be a suitable approach to give a true...     

From Entrepreneurial Orientation and Learning Orientation to Business Performance: Analysing the Mediating Role of Organizational Learning and the Moderating Effects of Organizational Size

Following the organizational learning theory and the knowledge‐based view approach, this contribution aims to study the influence of entrepreneurial orientation and learning orientation on organizational learning, considering the latter as a mediating variable in the relationships between both antecedent cultural values and business performance. We also analyse the moderating role of organizational size on these previous relationships. The hypotheses proposed in our research model are tested on a sample of 140 Spanish industrial companies, applying variance‐based structural equation modelling: partial least squares. In order to assess the moderating effects of organizational size, we adopt a multi‐group approach using two subsamples with large firms and small and medium‐sized enterprises (SMEs). Our findings indicate that organizational learning partially mediates the relationship between entrepreneurial orientation and performance and fully mediates the link between learning orientation and performance. Likewise, the results reveal that the relationship established between entrepreneurial orientation and organizational learning is more intense for the group of large firms than for the group of SMEs. Moreover, the influence of learning orientation on organizational learning is greater in SMEs than in large firms.     

Coping with Diversity in Alliances for Innovation: The Role of Relational Social Capital and Knowledge Codifiability

Alliances are increasingly considered a key element for innovation, especially in knowledge‐intensive firms. While this is true, the mere membership to alliances does not explain innovation performance, and thus the alliance's characteristics that determine high performance must be examined. This research address the question of how the diversity of partners in a certain alliance for innovation affects innovation performance, and how this influence can be moderated by certain characteristics, such as the relational dimension of social capital and the type of knowledge shared among partners. The empirical analysis of a sample of 90 biotech companies shows that there is an inverted U‐shaped relationship between alliance partner diversity and innovation performance and confirms the positive moderating effects of relational social capital and knowledge codifiability. These findings contribute to the current research on alliances for innovation by providing empirical evidence on why some alliances perform better than others. Also, the results suggest that the study of alliance partner diversity, as a determinant of alliance performance, should not be addressed in isolation.     

A bicriteria approach to scheduling a single machine with job rejection and positional penalties

Single machine scheduling problems have been extensively studied in the literature under the assumption that all jobs have to be processed. However, in many practical cases, one may wish to reject the processing of some jobs in the shop, which results in a rejection cost. A solution for a scheduling problem with rejection is given by partitioning the jobs into a set of accepted and a set of rejected jobs, and by scheduling the set of accepted jobs among the machines. The quality of a solution is measured by two criteria: a scheduling criterion, F1, which is dependent on the completion times of the accepted jobs, and the total rejection cost, F2. Problems of scheduling with rejection have been previously studied, but usually within a narrow framework—focusing on one scheduling criterion at a time. This paper provides a robust unified bicriteria analysis of a large set of single machine problems sharing a common property, namely, all problems can be represented by or reduced to a scheduling problem with a scheduling criterion which includes positional penalties. Among these problems are the minimization of the makespan, the sum of completion times, the sum and variation of completion times, and the total earliness plus tardiness costs where the due dates are assignable. Four different problem variations for dealing with the two criteria are studied. The variation of minimizing F1+F2 is shown to be solvable in polynomial time, while all other three variations are shown to be $\mathcal{NP}$ -hard. For those hard problems we provide a pseudo polynomial time algorithm. An FPTAS for obtaining an approximate efficient schedule is provided as well. In addition, we present some interesting special cases which are solvable in polynomial time.     

THE MEXICAN STATE AND THE AGRIBUSINESS MODEL OF DEVELOPMENT IN THE GLOBALIZATION ERA

This article analyzes the relationship between the State and transnational capital manifested in capitalist agribusiness schemes in Mexican agriculture. It illustrates a model that has privileged one type of development in detriment to other forms of organizing rural agricultural production and labor (Real 1997). Current agricultural development in México is linked directly to the “Green Revolution”, México being prominent as its birthplace. Ironically, the Green Revolution contributed to a massive displacement of rural population to cities as human labor was replaced by machinery (1992). Development of capitalist agriculture in México and Latin America is closely related to the effects of the transnationalization of agroindustry. The importance of agribusiness has expanded in recent decades through a series of events, including the substitution of basic crops for more profitable ones and the contribution to the “new international division of labor” (Sanderson 1990). Recent trilateral transnational political and economic changes are linked to the North American Free Trade Agreement (NAFTA) between México, United States and Canada (Kearney 1995). In the case of agriculture, Palerm and Urquiola (1993) believe the relationship between United States and Mexico to be bimodal. From a perspective of Social Anthropology we provide firsthand information about two areas of agroindustry: production of vegetables for export and production of poultry where participation by different social actors was observed. Agro‐industrial entrepreneurs depend upon agricultural workers who wish to conserve a peasant way of life.     

An Intertemporal Analysis of Development Policies in the EU

In this paper, we focus on the effects of EU structural transfer programs on the evolution of the EU less developed economies. We develop a two-sector endogenous growth model of private and public physical capital and human capital accumulation in which the public sector and the current account balances play a crucial role. This model is applied to Portugal. Simulation results suggest that structural programs will bring Portuguese GDP per capita to 63.7% of the EU average (up from around 54% in the last two decades), thereby greatly contributing to the process of real convergence of the Portuguese economy to EU standards. Additional transfers, primarily targeted at infrastructure development, are necessary, however, if a greater degree of real convergence is to be achieved. Furthermore, the impact of transfers on public deficits, the current account, and real exchange rates might adversely affect the long run requirements of nominal convergence and might exacerbate the need for budgetary restraint in Portugal. Accordingly, a relaxation of domestic matching fund requirements might be desirable.