Truthful germs are contagious: A local-to-global characterization of truthfulness

We study the question of which social choice functions from an abstract type space to a set of outcomes are truthful, i.e., implementable by truthful mechanisms, when utilities are quasi-linear. For convex domains, our main theorem characterizes truthful social choice functions as those satisfying two properties: local weak monotonicity and vortex-freeness. The first of these constrains the function values at any two sufficiently proximal points, while the second asserts that its line integrals around sufficiently small triangular loops must vanish.The characterization implies a local-to-global principle that allows one to deduce truthfulness of a function from its behavior on arbitrarily small neighborhoods of each point. Other consequences include a simple alternate derivation of the Saks–Yu Theorem that weak monotonicity characterizes truthfulness of functions having a convex domain and finite range, and a sufficient condition for constructing truthful functions by “stitching together” truthful subfunctions on different subsets of the domain.     

The Influence of Vested Interests on Healthcare Legislation in the USA, 2009–2010

Collective lobbying organizations and some big companies acted as cautious partners in the design of the Affordable Care Act of the Obama Administration. In addition to being consulted by government executives, these entities intensively lobbied legislators. The qualitative and statistical analysis I conduct here shows a positive impact of healthcare lobbying. Collective lobbying organizations have a significant impact on lawmaking and complementary lobbying enhances their impact. However, not all (disjointed) lobbying is successful. Perspective-based distortion might explain why organizations lobby on issues against all odds of ever being effective.     

阿联酋粮食战略储备项目的先进性和创新性

阿联酋粮食战略储备项目，筒仓仓容276760 t，粮食品种为小麦和稻谷，项目建设点储粮环境恶劣，图纸审查严格，整个项目设计均采用最先进的技术，并严格遵循欧美规范和标准进行设计。     

Design and planning for green global supply chains under periodic review replenishment policies

We quantify the impact of jointly optimizing strategic network design and tactical inventory planning on the cost and CO₂ emissions of multi-echelon logistics networks. The obtained insights indicate that longer optimized replenishment cycles reduce a node’s transportation cost and CO₂ emissions but increase its inventory costs. Moreover, under a fixed replenishment cycle, a node’s service level increases when supplied by a satellite warehouse. Finally: (i) the costs of implementing optimal green network design decisions could be misleading if inventory planning is neglected, (ii) greening of supply chains could become expensive, (iii) current legislative CO₂ ton prices hardly influence logistics networks.     

Product design strategies in technological shifts: An explorative study of Italian design-driven companies

This article analyzes the relationship between technological shift and product design strategies in the Italian lighting industry, where design players have experienced a discontinuous technological shift due to the introduction of LED (Light Emitting Diode) technology.     

Impossibilities for strategy-proof committee selection mechanisms with vetoers

When a group of voters selects a committee out of a set of candidates, it is common and often desirable to endow these voters with some veto power. I present impossibility results showing that even limited veto power makes many mechanisms of interest manipulable. This applies in particular (i) to mechanisms the range of which contains a degenerate lottery in which a committee is chosen for sure and (ii) to mechanisms that are constructed from extensive game forms with a finite number of strategies. These impossibilities hold on a large set of domains including the domain of additive preferences, and even when probabilistic mechanisms are allowed and voters can report cardinal preferences.     

我国住宅建筑工程设计施工中存在的问题和改进措施

建筑工程施工的组织设计是建筑工程的必要保障。近些年以来,随着我国经济的迅速发展,原有的建筑工程施工组织计划已经完全不能适应目前的施工建设了,根据建筑工程组织设计所存在的这些问题及改进措施提出改进措施,使建筑工程组织设计发挥出真正的重要作用,以达到经济效益与社会效益双丰收的目的。     

云南省某水库设计洪水分析

本文描述了四甲河流域的洪水特性,针对无资料地区洪水计算问题,分别采用暴雨洪水法、推理公式法对某水库进行洪水分析计算,为某水库的建设提供了相关的依据。     

价值共创行为分析框架构建 ——基于赋能理论视角

通过文献调查并结合案例的描述性分析,提出数字技术时代价值网络中不同行为主体之间的赋能内涵、关键维度以及基于赋能跨层次效应的价值共创行为分析框架。将"赋能氛围""主体赋能"分别作为价值网络中赋能的宏观维度和微观维度进行概念化。界定了两个维度的关键组成要素,分别包括信息共享、开放性结构、协同规则以及主体关系、资源整合和影响。构建了赋能的跨层次效应模型,分析了赋能的宏观-微观跨层次效应及其对价值网络生态和主体价值创造的影响。     

浅析如何系统地建立设计构想——以景观设计为例

任何设计在设计初期都需要构想,而构想需要系统性的建立。构想本身是一个系统,它包括立意、构思、表达技巧三个子系统。只有对这三个子系统拆分开来,对每一个子系统都进行深入的分析与了解后再将它们联系起来构成一个和谐统一的整体,才能建立一个系统的构想。从而才能创造出科学合理、适合城市发展并适应人们生活的景观。