Welfare costs of monetary policy uncertainty in the economy with shifting trend inflation

We study welfare costs of the uncertainty about monetary policy in the economy featuring shifting trend inflation. We follow Ruge-Murcia (J Econ Dyn Control 36: 914–-938, 2012) to employ the SMM approach to fit the model to the US data (1979Q1-2015Q1). We find that the monetary policy uncertainty affects economic welfare through different dimensions. On the one hand, the policy uncertainty itself distorts the economic welfare negligibly, not only by increasing volatilities of consumption and leisure, but also by decreasing their average levels. A higher level of trend inflation then signifies these changes to produce greater welfare costs. Furthermore, the adverse impacts of policy uncertainty on the economy, documented by the impulse response functions of macroeconomic variables to policy uncertainty shock, become larger when central banks raise their inflation targets. On the other hand, the costs of exogenous variations in trend inflation are larger if there is policy uncertainty.     

建国以来我国社会政策的价值转变

经过多年的市场经济实践,我国社会政策的价值观念发生了显著变化。曾经流行一时的“大公无私”、“兴公灭私”早已变成历史口号,忽视个人福利的虚幻集体主义也被真实的集体主义所取代,平均主义更是受到普遍的唾弃,社会政策的价值取向从差别性的家长主义向差别性的剩余主义转变。公私观和义利观、集体观和公平观很大程度上只是社会政策的价值指导和价值目标,真正对普通公民的福利产生直接影响的是社会政策的价值取向。     

When does financial integration matter for fiscal policy in a currency union? A welfare-based approach

We use a two-country new open economy macroeconomics model describing a currency union with imperfect financial integration. We assume that household preferences are biased towards the goods produced within the country. We use this setup to show how the degree of financial integration and the home bias affect the welfare efficiency of fiscal policy. This is particularly important for the implications of a fiscal policy launched by a member of the euro zone where the home bias is in a decreasing trend due to higher goods market integration and where there are explicit efforts to enhance financial integration. The results show in particular how the effects of an increasing financial integration on the impact of a fiscal policy can be mitigated or amplified by a decreasing home-product bias. Moreover, under certain conditions, the degree of financial integration has no effect on the welfare efficiency of fiscal policy despite its non-negligible effects on the components of welfare.     

WAGE SUBSIDY AND WELFARE IN DEVELOPING COUNTRIES

This paper seeks to answer if wage subsidy to workers displaced due to trade reform raises welfare in a developing country. We use a general equilibrium model with non‐specific factor inputs and trade liberalization as a policy variable. A combination of wage subsidy and tariff rate obtains the second‐best welfare level. The theoretical result is new, policy‐relevant and important in view of political‐economy aspects of free trade in developing and transition countries.     

Open-access renewable resources and pollution: Trade and policy implications in a two-country model

We examine the interaction between the relative inter-industry pollution externality and resource stock externality of harvesting in deciding trade patterns and welfare gains from trade in a two-country model (less-developed countries) with renewable resources in the absence of resource management. This paper focuses on the impacts of trade policies on resource conservation and welfare outcomes in two countries with different environmental management regimes. Differences in pollution management standards between both countries determine the direction of trade flow and gains from trade in a diversified production case. The country with a lower pollution intensity parameter, an exporter of resource goods, certainly experiences welfare loss in the post-trade steady-state and may also suffer a decline in utility throughout the transition path. However, a country with higher pollution intensity and importers of resource goods tend to gain from trade. Under national open-access resources, given that pollution is regulated up to a certain point in both countries, this study finds that implementing better restrictions on only one externality factor is not optimal from a post-trade welfare perspective. Lastly, from the point of view of policy suggestion, this paper offers an optimal trade policy that the economic and environmental effects of enforcing import tax on resource goods are likely to be Pareto-improving consequences compared to the implications of using an export tax.     

Strategic and non-competitive trade interventions

Those on the frontier of analyzing trade interventions in strategic and non-competitive environments have argued that new rationale for policy must be recognized once one leaves the competitive mold. Their view is supported by observers and policy experts who wish to incorporate the new rationale into an appropriately expanded framework. This paper reports an a welfare measure which meets these objectives.     

WELFARE GAINS FROM FINANCIAL LIBERALIZATION*

Financial liberalization has been a controversial issue, as empirical evidence for growth enhancing effects is mixed. Here, we find sizable welfare gains from liberalization (cost to repression), although the gain in economic growth is ambiguous. We take the view that financial liberalization is a government policy that alters the path of financial deepening, whereas financial deepening is endogenously chosen by agents given a policy and occurs in transition toward a distant steady state. This history‐dependent view necessitates the use of simulation analysis based on a growth model. Our application is a specific episode: Thailand from 1976 to 1996.     

CAN UNIONS HURT WORKERS? A POSITIVE ANALYSIS OF IMMIGRATION POLICY

This paper studies the determinants of immigration policy in an economy with entrepreneurs and workers where a trade union has market power over wages. The presence of the union induces a social welfare maximizing government to implement a high level of immigration, leading to a welfare loss not only from an aggregate point of view but also from the workers' point of view. When interest group politics prevails and workers' ability to influence the policy-maker is strengthened by existence of the union, we show the conditions under which workers may benefit from the presence of the union.     

On the welfare effects of trade and investment liberalization

Using a three-factor knowledge- and physical capital model of trade and multinational activity, we consider a set of policy experiments to assess the welfare effects of trade and investment liberalization in general equilibrium. Specifically, we address the question of whether and under which circumstances a single versus a combined trade/investment liberalization strategy or a unilateral versus a bilateral policy change is preferable from a single country's and the world's point of view. The focus of this paper is to look at three relevant questions. First, when is investment liberalization beneficial and when is it harmful for a single economy or the whole world? Second, is pure investment liberalization a welfare maximizing strategy? Third, when is either kind of liberalization (trade, investment, or both) welfare improving and when neither of them?     

Short or long-term contract? Firm’s optimal choice

This article studies the behaviour of a firm searching to fill a vacancy. The main assumption is that the firm can offer two different kinds of contracts to the workers, either a short-term contract or a long-term one. The short-term contract acts as a probationary stage in which the firm can learn about the worker. After this stage, the firm can propose a long-term contract to the worker or it can decide to look for another worker. We show that, if the short-term wage is fixed endogenously, it can be optimal for firms to start a working relationship with a short-term contract, but that this policy decreases unemployment and welfare. On the contrary, if the wage is fixed exogenously, this policy could be optimal also from a welfare point of view.     

The unbearable tightness of being in a monetary union: Fiscal restrictions and regional stability

We study how constrained fiscal policy can affect macroeconomic stability and welfare in a two-region model of a monetary union with sticky prices and distortionary taxation. Both government spending and taxes can be used to stabilize regional variables; however, the best welfare outcome is obtained under some tax variability and constant regional inflations. We use a variety of rules to characterize constrained fiscal policy and find that strict fiscal rules coupled with a monetary policy that targets union-wide inflation result in regional inflation stability and the welfare costs of such rules are not as unbearable as one would expect. Fiscal authorities can enhance welfare by targeting the regional output gap, while targeting regional inflation is less successful since inflation stability is guaranteed by the central bank.     

Does welfare policy affect residential choices? An empirical investigation accounting for policy endogeneity

This paper studies how changes in welfare policy affect welfare recipients' residential choices. Although several empirical studies have stressed that welfare policy may affect residential choices of welfare recipients, few studies have simultaneously taken into account that residential choices of welfare recipients are also likely to affect welfare policy. This paper utilizes a policy reform to address this policy endogeneity. The results show that welfare policy exerts a substantial effect on residential choices of welfare recipients.     

WELFARE COSTS OF SHIFTING TREND INFLATION: STAGGERED WAGE AND PRICE CONTRACTS

We develop a New Keynesian model featuring staggered price and wage contracts to study welfare costs of exogenous variations in trend inflation. The analyses show that the consequences of constant positive trend inflation and shifting trend inflation are severe, especially when trend inflation is high. Among two channels, staggered wage contracts play a vital role in transmitting adverse impacts of constant and shifting trend inflation into the economy. Without the staggered wage channel, these costs are modest. We also conduct exercises to examine the sensitivity of welfare costs to a wide range of plausible parameters. The results show that if the price and wage friction are sufficiently large, the price and wage indexation level are sufficiently small, or there is upward biased trend inflation process, the welfare costs become larger.     

Location choice,competition, and welfare in non-tradable service FDI

We investigate whether non-tradable service FDI is efficient from a welfare point of view. A fixed number of firms strategically decide which markets to locate in and then compete in quasi-Cournot fashion. Considering firm location in two symmetric markets, non-tradable service FDI may or may not be efficient for the source country, depending on the total number of firms, competition in markets and the curvature of the demand function. In contrast, non-tradable service FDI is always efficient for the host country and the overall economy. This implies that any policy that affects firm location between two symmetric markets will not be beneficial from a welfare viewpoint.     

Gains from commitment in monetary policy: Implications of the cost channel

Many empirical studies find robust evidence that marginal cost of production directly depends on the nominal rate of interest. This relationship induces a cost channel for monetary policy transmission. Although the empirical literature provides ample evidence for a cost channel, studies that evaluate the welfare gains from monetary policy commitment have so far entirely ignored its presence. This study shows that, overlooking the cost channel, one significantly underestimates the welfare gains from monetary policy commitment. I find that there is a robust positive relationship between the size of the cost channel and welfare gains from monetary policy commitment. Using a version of the new Keynesian model calibrated to the US economy, I find that failure to take into account the presence of a cost channel leads to an understatement of the gains from monetary policy commitment by an amount equivalent to a 0.48 percentage points permanent cut in quarterly inflation.     

Cooperation versus competition in product innovation

This paper analyzes the optimal antitrust policy in the context of a patent race. In a simplified model, we identify the conditions under which allowing cooperation yields greater welfare than imposing competition. In view of our results, we discuss, critically, the current European policy towards R&D cooperation.     

Mandate-based welfare policies and the effect on real wage – The case of Taiwan

This study estimates the relationship between statutory welfare programs and workers’ compensation. Employing monthly macroeconomic data from 1982 to 2016 and wage rates in several private industrial sectors in Taiwan, the relationships between pay variations and policy interventions are explored after controlling for the economic growth rate, labor productivity, and time fixed effects. The seasonal autoregressive integrated moving average (SARIMA) and multivariate adaptive regression splines (MARS) were adopted in the panel analyses. The findings of this study suggest that social welfare policies have negative effects on employees’ wage rates. The magnitudes of the effects are directly linked to the burden borne by the employers. National Health Insurance has the greatest negative effects on workers’ pay in all selected industrial sectors. The statutory welfare benefits explain approximately 23% of the pay deviation from the trend predicted by the models. A non-payroll-based financing method could be considered in the future to alleviate this impact.     

Common Currencies vs. Monetary Independence

We study the optimal monetary policy in a two-country open-economy model under two monetary arrangements: (a) multiple currencies controlled by independent policy makers; (b) common currencies with a centralized policy maker.
Our findings suggest that: (i) monetary policy competition leads to higher long-term inflation and interest rates with large welfare losses; (ii) the inflation bias and the consequent losses are larger when countries are unable to commit to future policies; (iii) the welfare losses from higher long-term inflation dominates the welfare costs of losing the ability to react optimally to shocks.     

基于DSGE模型的货币政策对银行风险承担影响研究*——兼论货币政策的应对

本文着力研究货币政策对商业银行风险承担的影响机制，并在此基础上分析货币政策应当如何应对。为此，本文构建了DSGE模型对比分析银行风险承担行为的传导机制，结果显示在信息不对称和有限债务的条件下，银行存在着道德风险，会过度地主动承担风险。为应对银行风险承担行为造成的低效率，本文设计了“最优”货币政策规则：货币政策应适当容忍通货膨胀的波动，优先关注实际利率，以降低由银行风险承担行为所导致的社会福利损失。     

Aging,Myopia, and the Pay‐As‐You‐Go Public Pension Systems of the G7: A Bright Future?

Public pension systems of the G7 countries were established in an era when contributors far outnumbered beneficiaries. Now, for each beneficiary there are fewer contributors, and this trend is projected to accelerate. To evaluate the prospects for these economies we develop an endogenous growth overlapping generations model. We analyze individuals’ behavior when their expectations regarding longevity are rational or myopic, and examine whether policies exist that can offset any adverse effects of aging. We find that while perfectly anticipated aging is welfare improving, myopia worsens welfare, puts pension systems at risk, and cannot be easily remedied by public policy.