The Democratic Political Economy of Progressive Income Taxation

Why do both left and right political parties typically propose progressive income taxation schemes in political competition? Analysis of this problem has been hindered by the two-dimensionality of the issue space. To give parties a choice over a domain that contains both progressive and regressive income tax policies requires an issue space that is at least two-dimensional. Nash equilibrium in pure strategies of the standard two-party game, whose players have complete preferences over a two-dimensional policy space, generically fails to exist. I introduce a new equilibrium concept for political games, based on the fact of factional conflict within parties. Each party is supposed to consist of reformists, militants, and opportunists: each faction has a complete preference order on policy space, but together they can only agree on a partial order. Nash equilibria of the two-party game, where the policy space consists of all quadratic income tax functions, and each party is represented by its partial order, exist, and it is shown that, in such equilibria, both parties propose progressive income taxation.     

HOW DO ELECTORAL SYSTEMS AFFECT FISCAL POLICY? EVIDENCE FROM CANTONAL PARLIAMENTS, 1890–2000

Using a new data set on Swiss cantons since 1890, we analyze how the adoption of proportional representation affects fiscal policy. In line with economic theory, we show that proportional systems shift spending toward broad goods (like education and welfare benefits) but decrease spending on geographically targetable goods (like roads). We find little evidence that proportional representation increases the overall size of government. An analysis of the underlying theoretical mechanisms reveals that proportional representation increases electoral turnout, left‐wing representation, and political fragmentation. These changes in political representation explain a substantial share of the rise in education spending, but a small share of the rise in welfare spending or the decline in road expenditures.     

A POLITICAL ECONOMY THEORY OF FISCAL POLICY AND UNEMPLOYMENT

This paper presents a political economy theory of fiscal policy and unemployment. The underlying economy is one in which unemployment can arise but can be mitigated by tax cuts and increases in public production. Such policies are fiscally costly, but can be financed by issuing government debt. Policy decisions are made by a legislature consisting of representatives from different political districts. With the available policies, it is possible for the government to completely eliminate unemployment in the long run. However, with political decision making, the economy always has unemployment. Unemployment is higher when the private sector experiences negative shocks. When these shocks occur, the government employs debt‐financed fiscal stimulus plans which involve both tax cuts and public production increases. When the private sector is healthy, the government contracts debt until it reaches a floor level. Unemployment levels are weakly increasing in the economy's debt level, strictly so when the private sector experiences negative shocks. Conditional on the level of workers employed, the mix of public and private output is distorted.     

A DRAWBACK OF ELECTORAL COMPETITION

In most major democracies there are very few parties compared to the number of possible policy positions held by voters. We provide an efficiency rationale for why it might be appropriate to limit the proliferation of parties. In our model, the larger the number of parties, the greater the inefficiency of the outcome of electoral competition. The reason is that, when the number of parties increases, electoral incentives push each party to focus its electoral promises on a narrower constituency, and then special interest policies replace more efficient policies that have diffuse benefits. The analysis provides a possible explanation for the existence of institutional features that limit the extent of electoral competition: thresholds of exclusion, runoff electoral systems, and majoritarian two‐party political systems. (JEL: D82, L15)     

政府碳税与补贴政策对外包再制造影响研究

为分析政府碳税与补贴政策对外包再制造影响，基于政府两种政策构建了外包再制造下制造/再制造博弈模型。基于博弈模型，对比分析政府两种对策对外包再制造下最优解的影响，研究主要得到：政府补贴政策可以有效提高废旧产品回收率，但只有当单位新产品碳税额度只有大于某一阈值时，政府碳税政策才会提高废旧产品回收率；政府采取补贴政策时，原始制造商通过降低单位再制造产品外包费用来获取政府补贴；政府采取碳税政策时，原始制造商通过提高单位新产品零售价格，把部分碳税转移给消费者；政府补贴政策可以同时增加原始制造商和再制造商收益；政府碳税政策可以增加再制造商收益，但只有单位新产品碳税额度大于某一阈值时，才可以增加原始制造商收益；当单位新产品对环境造成影响一定，并且单位再制造产品对环境造成影响与单位新产品对环境造成影响之比大于某一阈值时，政府补贴政策对环境造成影响最大、政府碳税政策对环境造成影响最小。     

经济增长和环境质量相容性政策条件——环境技术进步方向视角下的政策偏向效应检验

现有文献关注政策规制的经济与环境绩效,却并未重视不同类型政策的技术偏向,以及技术偏态情境中经济增长和环境质量相容发展的政策条件。本文扩展Acemoglu等(2012)的环境技术进步方向模型,数理演绎不同性质政策的技术偏向,以及技术进步方向转变时经济增长和环境质量的动态演化过程,再结合我国经济数据进行政策效果评价。研究结果发现:(1)环境技术进步方向是技术研发效率和环境政策累积作用的结果,环境政策会通过影响不同类型技术创新激励的方式,改变环境技术进步方向。(2)异质性政策转变技术进步方向,影响经济增长和环境质量,其作用存在不同的着力点和偏向性。其中,研发补贴政策的清洁技术偏向和产出激励效果明显,而规制类政策的环境质量效应优于研发补贴,但其对经济增长的作用表现出非线性U型特征。(3)单一政策干预往往难以破除经济增长和环境质量的两难困境,而政策组合的效果明显优于单一政策,特别是在碳排放权交易试点地区实施研发补贴政策,以及在碳排放权交易试点地区同时实行环境税与研发补贴,效果明显优于实施单一政策。但最优的政策组合并非固定不变,而往往处于动态变化过程中。     

PUBLIC EDUCATION AND PENSIONS IN DEMOCRACY: A POLITICAL ECONOMY THEORY

A dynamic political economy theory of fiscal policy is presented to explain the simultaneous existence of public education and pensions in modern democracies. The driving force of the model is the intergenerational conflict over the allocation of the public budget. Successive generations of voters choose fiscal policies through repeated elections. The political power of elderly voters creates the motive for adults to support public investment in the human capital of future generations since it expands future pension possibilities. We characterize the Markov perfect equilibrium of the voting game in a small open economy. The equilibrium reproduces salient features of intergenerational fiscal policies in modern economies.     

碳税政策下闭环供应链网络均衡分析

针对由多个制造/再制造工厂和多个需求市场构成的闭环供应链网络，考虑两种碳税政策：单一比例碳税政策和超额累进碳税政策，分别量化两种碳税政策下工厂需支付的碳税，分析两种碳税政策下闭环供应链网络各成员企业的均衡条件，建立闭环供应链网络均衡模型，提出修正投影算法求解模型，最后，通过算例，对比分析两种碳税政策对闭环供应链网络成员企业新产品产量、网络间正向/逆向产品交易量、需求、价格、减排投资、碳排放量、碳税及成员利润的影响。     

REDISTRIBUTION,PORK, AND ELECTIONS

Why might citizens vote against redistributive policies from which they would seem to benefit? Many scholars focus on ‘wedge’ issues such as religion or race, but another explanation might be geographically‐based patronage—or pork. We examine the tension between redistribution and patronage with a model that combines partisan elections across multiple districts with legislation in spatial and divide‐the‐dollar environments. The model yields a unique equilibrium that describes the circumstances under which poor voters support right‐wing parties that favor low taxes and redistribution, and under which rich voters support left‐wing parties that favor high taxes and redistribution. The model suggests that one reason standard tax and transfer models of redistribution often do not capture empirical reality is that redistributive transfers are a less efficient tool for attracting votes than are more targeted policy programs. The model also underlines the central importance of party discipline during legislative bargaining in shaping the importance of redistribution in voter behavior, and it describes why right‐wing parties should have an advantage over left‐wing ones in majoritarian systems.     

碳税政策下制造商竞争的供应链定价策略和社会福利研究

本文在考虑消费者环境意识下，探讨了制造商竞争情形下基于碳税政策的供应链成员定价策略和社会福利问题。研究表明，碳税政策的实施均会使得普通产品和低碳产品的批发价格和零售价格上升，且普通产品的价格变化总是较低碳产品更加明显；实施碳税政策前后，清洁型制造商面临的产品需求和利润变化总是较普通制造商更具有相对优势；制造商竞争有利于碳税政策引导制造商降低单位产品的碳排放量，实现绿色转型；碳税政策下，不论是清洁型制造商还是普通制造商，他们降低自身产品的单位碳排放量对提升自身产品在需求上的优势或减少自身产品在需求上的劣势都是有益的。当制造商之间的竞争性较小时，实施最优的碳税政策可以显著改善社会福利；特别是当消费者环境意识水平较低时，实施最优的碳税政策更为必要。当制造商之间的竞争强度较大时，不论消费者环境意识高低，直观税率值1可以作为一个近似最优的碳税政策，用以改善社会福利。     

Environmental Taxes and the Choice of Green Technology

We study several important aspects of using environmental taxes to motivate the choice of innovative and “green" emissions‐reducing technologies as well as the role of fixed cost subsidies and consumer rebates in this process. In our model, a profit‐maximizing monopolistic firm facing price‐dependent demand selects emissions control technology, production quantity, and price in response to the tax, subsidy, and rebate levels set by the regulator. The available technologies vary in environmental efficiency as well as in the fixed and variable costs. Both the optimal policy for the firm and the social‐welfare maximizing policy for the regulator are analyzed. We find that the firm's reaction to an increase in taxes may be non‐monotone: while an initial increase in taxes may motivate a switch to a greener technology, further tax increases may motivate a reverse switch. For the regulator, we compare the social welfare achievable in the centralized system (which serves as an upper bound) to the highest level achievable under different classes of environmental policies. If the regulator is limited to a tax‐only policy, then when the regulator is moderately concerned with environmental impacts, the tax level that maximizes social welfare simultaneously motivates the choice of clean technology and closes the gap to the upper bound; however, both low and high levels of societal environmental concerns may lead to the choice of dirty technology and significant welfare losses as compared to the centralized case. Supplementing the environmental taxation with fixed cost subsidies and consumer rebates can eliminate this effect, expanding the range of parameters over which the green technology is chosen and often closing the welfare gap to the centralized solution.     

TAX POLICY REFORM: THE ROLE OF EMPIRICAL EVIDENCE

To understand the role of evidence in tax policy design, this paper organizes the empirical analysis of reform under five loosely related headings: (i) key margins of adjustment, (ii) measurement of effective tax rates, (iii) the importance of information and complexity, (iv) evidence on the size of responses, and (v) implications from theory for tax design. The context for the discussion is the recently published Mirrlees Review of tax reform. Although the Review focused on all aspects of tax reform, this paper highlights the taxation of earnings. It also comments on earnings taxation in the context of VAT base‐broadening reforms and the taxation of capital.     

DO PARTIES MATTER FOR ECONOMIC OUTCOMES? A REGRESSION‐DISCONTINUITY APPROACH

A long‐standing issue in political economics is to what extent party control makes a difference in determining fiscal and economics policies. This question is very difficult to answer empirically because parties are not randomly selected to govern political entities. This article uses a regression‐discontinuity design, namely, party control changes discontinuously at 50% of the vote share, which can produce “near” experimental causal estimates of the effect of party control on economic outcomes. The method is applied to a large panel data set from Swedish local governments with a number of attractive features. The results show that there is an economically significant party effect: Left‐wing governments spend and tax 2–3% more than right‐wing governments. Left‐wing governments also have 7%lower unemployment rates, which is partly due to that left‐wing governments employ 4% more workers than right‐wing governments. (JEL: C21, D72, D78, H71, H72)     

基于低碳视角的政府监管与制造商生产的演化博弈研究

政府制定的监管政策对制造商生产策略的选择具有重要影响。本文基于低碳视角，引入政府碳税系数、补贴系数、低碳产品生产成本等参数，针对税收与补贴混合政策、单一税收政策和单一补贴政策三种模式，分别建立了政府与制造商之间决策行为的演化博弈模型，对比分析了不同监管政策下政府和制造商达到均衡所需条件的差异，并进一步探讨了影响政府、制造商决策的关键因素。研究结果表明，当初始生产低碳产品的制造商比例相同时，政府实施混合政策比单一税收政策或补贴政策对制造商生产低碳产品的激励作用更加明显。政府监管与政府低碳税收、高碳产品罚款和监管成本有关，制造商生产低碳产品受到产品成本、收益的影响。研究结论不仅为政府制定低碳产品政策提供了科学依据，也为制造商选择低碳产品策略给予了决策支撑。     

RETHINKING THE EFFECT OF IMMIGRATION ON WAGES

This paper calculates the effects of immigration on the wages of native US workers of various skill levels in two steps. In the first step we use labor demand functions to estimate the elasticity of substitution across different groups of workers. Second, we use the underlying production structure and the estimated elasticities to calculate the total wage effects of immigration in the long run. We emphasize that a production function framework is needed to combine own‐group effects with cross‐group effects in order to obtain the total wage effects for each native group. In order to obtain a parsimonious representation of elasticities that can be estimated with available data, we adopt alternative nested‐CES models and let the data select the preferred specification. New to this paper is the estimate of the substitutability between natives and immigrants of similar education and experience levels. In the data‐preferred model, there is a small but significant degree of imperfect substitutability between natives and immigrants which, when combined with the other estimated elasticities, implies that in the period from 1990 to 2006 immigration had a small effect on the wages of native workers with no high school degree (between 0.6% and +1.7%). It also had a small positive effect on average native wages (+0.6%) and a substantial negative effect (−6.7%) on wages of previous immigrants in the long run.     

考虑政府低碳政策的双销售模式供应链决策研究

消费者低碳消费趋势及政府碳排放政策的颁布和实施，迫使企业必须审视自身生产运营中的碳排放问题。本文研究单一销售模式和双销售模式下政府价格补贴、一次性补贴、碳税等政策对低碳供应链决策的作用机制，构建含有一个生产商和一个零售商的低碳供应链集中式决策模型。基于基准模型和三种政策决策模型，解析分析各政策对供应链产品定价和利润的影响。研究结果表明相同减排程度下，双销售模式的产品价格补贴力度大于单一销售方式；从政府角度来看，对于单一销售模式，要使企业达到相同的减排效果应当选择一次性补贴政策，而双销售模式应实行价格补贴政策；政府征收碳税提高了减排边界，促使更多企业进行减排，同时单一销售模式减排边界高于双销售模式；政府应该合理制定碳税，否则会导致企业不愿减排或退出市场。另外仿真分析了减排量对产品价格和供应链利润的影响以及三种政策参数对供应链利润的影响，揭示出相关的管理学启示，本文的研究结论能为政府制定低碳政策提供一定的理论依据。     

结构性减税下小微企业税率调整分析模型

本文针对结构性减税政策在支撑实体经济、调整产业结构方面边际效果日趋减弱,且对小微企业减税领域研究的匮乏和非系统性的特点,建立了一个结构性减税下小微企业税率调整分析模型。通过对企业员工、小微企业和政府三层次目标的讨论,逐步得出各关键指标的表达式,建立了政府目标同小微企业税率的关系模型,在此基础上推导出九个相关命题。研究发现：税率调整在本质上是国民对福利和就业两种需求的偏好替换;并不存在最优的小微企业税率,只存在最差的小微企业税率。目前我国设定的小微企业税率低于最差税率,属于左侧税率;税率优劣取决于其与最差税率的偏离程度,而不是绝对值。研究结果还表明：在不改变既有左侧税率的前提下,政府也可以通过加大对职业培训和社会医保等领域的投入,实现结构性减税所要达到的效果。模型的建立和相关命题的引入,丰富了结构性减税政策的理论体系,对小微企业的税率调整有一定的实践意义。     

Financing Liabilities Under Superfund

One of the more critical environmental risk areas involves the financing of cleanup costs associated with past improper disposal of hazardous wastes. These costs will run into the tens of billions of dollars. The federal Superfund program and related state programs are the driving forces for cleaning up hazardous waste. Under Superfund, the government collects taxes and coordinates cleanup strategies, and searches for potentially responsible parties (generators, disposers, transporters) to assist in financing the cleanup. To lessen the financial impact, responsible parties are looking to their liability insurers to provide coverage under old general liability insurance policies. Insurance companies contend that Superfund liabilities are not covered under liability policies. The paper examines the various financing methods and liabilities produced by Superfund. Particular emphasis is placed on developments in the courts which are resulting in a significant shift in the financial responsibilities to the insurance industry. Broad estimates of the financial impact of Superfund liabilities are developed. Finally, several public policy issues, which are raised by the topics exmained in this paper, are discussed.     

Replenishment Policies for Multi‐Product Stochastic Inventory Systems with Correlated Demand and Joint‐Replenishment Costs

This study analyzes optimal replenishment policies that minimize expected discounted cost of multi‐product stochastic inventory systems. The distinguishing feature of the multi‐product inventory system that we analyze is the existence of correlated demand and joint‐replenishment costs across multiple products. Our objective is to understand the structure of the optimal policy and use this structure to construct a heuristic method that can solve problems set in real‐world sizes/dimensions. Using an MDP formulation we first compute the optimal policy. The optimal policy can only be computed for problems with a small number of product types due to the curse of dimensionality. Hence, using the insight gained from the optimal policy, we propose a class of policies that captures the impact of demand correlation on the structure of the optimal policy. We call this class (s, c, d, S)‐policies, and also develop an algorithm to compute good policies in this class, for large multi‐product problems. Finally using an exhaustive set of computational examples we show that policies in this class very closely approximate the optimal policy and can outperform policies analyzed in prior literature which assume independent demand. We have also included examples that illustrate performance under the average cost objective.     

Immigration Policy,Equilibrium Unemployment,and Underinvestment in Human Capital

We analyse the impact of different immigration policies on human capital investment in a search‐theoretic model. This class of models features unemployment and underinvestment in human capital. The underinvestment in human capital can be solved by combining immigration policy with appropriate education subsidies. Extending the model with respect to different skill groups allows to analyse the observed bimodal skilled immigration of the USA.