Populist Anti-immigrant Sentiments Taken Seriously: A Realistic Approach

This essay argues that the illiberal anti-immigrant sentiments which lie behind the success of populist right-wing parties deserve the attention of political theorists working on the ethics of migration, even though such sentiments exceed the boundaries of admissible disagreement on justice in migration. Firstly, populist anti-immigrant sentiments hinder the implementation of liberal democratic immigration policies and thus they represent a feasibility constraint for any liberal ethics of migration, not only the most cosmopolitan ones. Secondly, there are legitimacy reasons why such views should be neither merely dismissed nor simply contained, since they are voiced by populist political parties which are admitted in the electoral competition and even participate in governments. The main upshot of this discussion is a methodological one: the article argues that, since political theory should deal with the feasibility and legitimacy issues raised by populist anti-immigrant sentiments, a realistic approach is needed. The last section shows that such a methodological change offers the opportunity to extend the scope of normative theorising. In particular, it illustrates how a realistic approach encourages theorists to focus on local-level policies, as well as to devote attention to non-governmental actors and to their role in tackling citizens’ hostility towards immigrants.

Infinite Lifespans, Terraforming Planets, And Intergenerational Justice

When it comes to specifying the moral duties we bear towards future generations, most political philosophers position themselves on what could be regarded as a safe ground. A variant of the Lockean proviso is commonplace in the literature on intergenerational justice, taking the form of an obligation to bestow upon future people a minimum of goods necessary for reaching a certain threshold of well-being (Meyer, 2017). Furthermore, even this minimum is often frowned upon, given the non-identity problem and the challenges this presents to the topic of justice between generations. Additional issues are raised at the level of non-ideal theory, the most significant being the problem of non-compliance (Gosseries and Meyer, 2009).In this paper I intend to probe the limits of “practical political possibility” (Rawls 1999), by inquiring whether embracing the sufficiency view (Frankfurt, 1987; Crisp, 2003; Benbaji, 2005) as a distributive pattern and capabilities as a metric can lead to more burdensome obligations for present generations. More specifically, I try to show that we have a duty to invest in research that aims at prolonging the lifespan of humans (the idea can already be found in the sufficientarian literature, for instance in Farrelly, 2007). Moreover, given the Earth’s limited resources, we ought to encourage the terraforming of other planets in order to make them inhabitable for (future) people.I argue that these two seemingly far-fetched projects are in fact worthwhile goals to pursue on the one hand, and moral obligations on the other hand. Nonetheless, they are not the only ones we ought to take on; for instance, we must simultaneously pursue them and try to improve the prospects of those who fall under a sufficiency threshold here and now. That is, specifying these (prima facie) duties towards future generations is connected with stronger obligations towards the current generation.Towards the end of the paper I engage in a discussion regarding the role of the feasibility constraint in a theory of justice, as rationales pertaining to feasibility are perhaps going to be the most recurrent criticisms raised against my proposal. To that end, I defend limitarian policies, which aim at setting an upper limit to how much money individuals are allowed to possess (Robeyns, 2017; Volacu and Dumitru, 2019).

PROBING THE LIMITS OF RAWLS’S REALISTIC UTOPIA

InThe Law of Peoples, John Rawls introduces a framework for realistic utopia, within which the limits of practicable political possibility are probed through the further development of his international theory. This essay addresses the apparent paradox of realistic utopianism within the context of, and in relation to, ideal theory, in an attempt to explore the scope and limits of Rawls’s theory. The ideas behind Rawls’s realistic utopia are discussed in detail, the concept is contrasted with ideal theory in order to assess to what extent Rawls’s framework for realistic utopia introduced inThe Law of Peoplesdiffers from other forms of ideal theory, and the limits of realistic utopianism are identified.I argue first, that, in an attempt to address the potential feasibility constraint, Rawls tries to distinguish his framework of realistic utopia from that of more traditional ideal theory. I then proceed to examine the differences between realistic utopianism inThe Law of Peoplesand ideal theory inA Theory of Justice. I then conclude that Rawls only partially meets the challenge of establishing practicable political possibility. In actuality, Rawls’s focus on ideal agents in ideal as well as nonideal theory, together with his emphasis on societies as closed and self-sufficient, ignores the potential for noncompliance by liberal and decent societies, as well as interdependencies between societies that can cause or lead to injustice, conflict, and instability. I argue that despite these flaws, Rawls’s approach nevertheless provokes new insights into the function of the principles of the ideal theory framework as guidelines for real-world policies striving toward peace, stability, and justice.

Production with Decreasing Returns

This chapter is devoted to the theory of the firm. Production consists in the transformation of goods known as inputs into other goods, the outputs. The firm is the center of productive activity. Its activity is represented by a vector in the commodity space. The chapter starts with the definition of the firm's production set, which consists of the activities that are technologically feasible for the firm. It then examines the maximization of the firm's profit subject to the feasibility constraint. The properties of the solution of this maximization problem depend on the structure of the production set. For efficient boundaries of strictly convex sets, the problem of profit maximization has a unique solution. This solution is a function of the price vector and defines the firm's net supply function. Next, the chapter takes the firm's net supply function as a primitive concept and introduces a set of properties that are to be satisfied by these net supply functions.

Stabilized minimum infinity-norm torque solution for redundant manipulators

The minimization of the joint torques based on the ∞-norm is proposed for the dynamic control of a kinematically redundant manipulator. The ∞-norm is preferred to the 2-norm in the minimization of the joint torques since the maximum torques of the actuators are limited. To obtain the minimum ∞-norm torque solution, we devised a new algorithm that uses the acceleration polyhedron representing the end-effector's acceleration capability. Usually the minimization of the joint torques has an instability problem for the long trajectories of the end-effector. To suppress this instability problem, an inequality constraint, named the feasibility constraint, is developed from the geometrical relation between the required end-effector acceleration and the acceleration polyhedron. The minimization of the °-norm of the joint torques subject to the feasibility constraint is shown to improve the performances through the simulations of a 3-link planar redundant manipulator.