Tariff‐tax Reforms in Large Economies

This paper studies tariff‐tax reforms in a two‐region global New Keynesian model composed of a developing and an advanced region. In our baseline calibration, a revenue‐neutral reform that lowers tariffs in developing countries can reduce domestic welfare. The reason is that the increase in developing countries welfare due to higher output is dominated by the welfare losses stemming from the deterioration of the terms of trade. On the other hand, the reform increases output and welfare in the advanced countries and in the world as a whole. The effects that we highlight have not been studied in previous contributions to the literature, which looks at tariff‐tax reforms using a small open economy framework. Nominal rigidities have important implications for adjustment dynamics in our model. In the case of a ‘point‐for‐point’ reform, for example, price stickiness implies that the international dynamics of output is reversed compared to a revenue‐neutral reform.     

Fiscal consolidation with tax evasion and corruption

Cross-country evidence highlights the importance of tax evasion and corruption in determining the size of fiscal multipliers. We introduce these two features in a New Keynesian model and revisit the effects of fiscal consolidations. VAR evidence for Italy suggests that spending cuts reduce tax evasion, while tax hikes increase it. In the model, spending cuts induce a reallocation of production towards the formal sector, thus reducing tax evasion. Tax hikes increase the incentives to produce in the less productive shadow sector, implying higher output and unemployment losses. Corruption further amplifies these losses by requiring larger hikes in taxes to reduce debt. We use the model to assess the recent fiscal consolidation plans in Greece, Italy, Portugal and Spain. Our results corroborate the evidence of increasing levels of tax evasion during these consolidations and point to significant output and welfare losses, which could be reduced substantially by combating tax evasion and corruption.     

Sovereign debt as a contingent claim: a quantitative approach

We construct a dynamic equilibrium model with contingent service and adverse selection to quantitatively study sovereign debt. In the model, benefits of defaulting are tempered by higher future interest rates. For a wide set of parameters, the only equilibrium is one in which the sovereign defaults in all states; additional output losses, however, sustain equilibria that resemble the data. We show that due to the adverse selection problem, some countries choose to delay default to reduce loss of reputation. Moreover, although equilibria with no default imply greater welfare levels, they are not sustainable in highly indebted and volatile countries.     

A trade theoretic analysis of outward capital flows: with special reference to Hong Kong

This paper sets up a trade theoretic model to explain the output, price and welfare consequences of the outward investment from Hong Kong to the Pearl River Delta. A four-good trade theoretic model is set up to incorporate some special features of the Hong Kong Economy. We assume that the economy produces four goods: an exportable good, an importable good and two non-traded goods. A special feature of the model is that one of the non-traded goods (locally produced) is also consumed by foreigners and produced under the assumption of non-competitive market framework. As tourist or business-centre trade is of great significance to Hong Kong, this model allows us to capture this phenomenon. First, precise conditions are derived regarding the decline in manufacturing output in Hong Kong. Second, it is shown that, in spite of the supply side determination of the relative price of non-traded goods, income effects in this market are of great significance in both income (welfare) and output movements. These income effects cannot be captured in industrial organization type applied work. Third, it is shown how outflow of capital affects labour productivity. A surprising result obtained for this part of the analysis is that a fall in productivity (outflow of capital and de-industrialization) creates a favourable terms-of-trade effect in the monopolized sector. The welfare effect consists of four terms: (1) a terms-of trade effect via the price of non-traded goods consumed by tourists/foreigners; (2) the loss (gain) in productivity due to an outflow of capital; (3) repatriation payments; and (4) the gains from exporting from the Special Economic Zones as well as other Pearl River Delta cities. Our decomposition has two very important features in contrast to traditional models: a terms-of-trade effect from the consumption of services and productivity gains or losses. The last point is exceedingly important for policy makers specifically if outward flow of capital affects productivity negatively.     

Market integration,environmental policy,and transboundry pollution from consumption

Recent empirics report that transport cost reductions significantly contribute to rapidly growing world trade. This article develops a reciprocal market model of intra-industry trade with transboundary pollution from consumption to consider how market integration in the form of transport cost reductions affects the noncooperative choice of an environmental policy and the equilibrium welfare. I show that market integration can improve welfare locally, but that welfare under any non-prohibitive trade cost can not be higher than welfare under autarky. This possibility of trade losses exhibits a sharp contrast to the case of production-generated pollution.     

中国—新西兰自由贸易区的构建对双方经济影响的计量研究

采用GTAP模型,就中新自由贸易区的建立将对双方在贸易规模、贸易结构、生产格局、GDP和福利水平等方面产生的经济影响进行了一般均衡模拟研究。研究结果表明,中国农产品、奶产品、畜牧业、动物肉及其制品等会受到较大冲击;中国各产业的产出水平不会受太大影响,而新西兰各产业的产出变化相对明显;新西兰所受经济影响要大于中国所受经济影响;中国的GDP和福利水平会受到负面影响,而新西兰的GDP和福利会得到较大改善。     

Trade and foreign direct investment-related impacts of Brexit

We offer a general-equilibrium analysis of Brexit incorporating the state-of-the-art differences in productivity and firms' selection within manufacturing sectors à la Melitz (Econometrica, 2003, 71 , 1695) and multinationals in services. Our results suggest that trade, output and average productivity diminish across most sectors in the UK and the Rest of the European Union (REU), as well as GDP, welfare, wages and capital remuneration. However, the UK loses more due to the missing preferential access to the huge EU market. Significant welfare losses along the extensive margin occur in the UK due to the lost imported varieties produced by highly productive European firms. These cannot be compensated by the new varieties of less productive domestic firms that enter the British market due to increased protectionism and reduced import competition. In addition, the emergence of barriers against multinationals, which is often ignored in previous studies, explains approximately one third of the negative effect in both the UK and REU. Furthermore, we show that the Brexit impact is about only half if we do not include both foreign direct investment barriers and Melitz structure. Thus, previous studies without these important model features would underestimate the Brexit impact significantly.     

Trade and foreign direct investment in China: a political economy approach

We view the political process in China as trading off the social benefits of increased trade and foreign direct investment against the losses incurred by state-owned enterprises due to such liberalization. A model drawing on Grossman and Helpman [Am. Econ. Rev. 84 (1994) 833; The Political Economy of Trade Policy: Papers in Honor of Jagdish Bhagwati, MIT Press, Cambridge (1996) 199] is used to derive an empirically estimable government objective function. The key structural parameters of this model are estimated using province-level data on foreign direct investment and trade flows in China, over the years 1984-1995. We find that the weight applied to consumer welfare is between one-seventh and one-quarter of the weight applied to the output of state-owned enterprises.     

Media Mergers with Preference Externalities and Their Implications for Content Diversity,Consumer Welfare,and Policy

One of the primary concerns regarding media mergers involves their potential adverse effect on content/viewpoint diversity. This paper presents a formal treatment of the influence that within-group consumer preference externalities over media content have on a media outlet’s incentive to engage in product repositioning both before and after merging with another media outlet. We first present a model of consumer behavior under preference externalities and derive aggregate consumer expenditure functions for media output. It is shown that even assuming the merged entity sets a uniform price and content mix across market areas, the relative access to some minority (majority) group subscribers will increase (decrease) post-merger (and vice versa). We derive sufficient conditions under which the merged entity will in fact have an incentive to homogenize its post-merger price/content mix. And while the post-merger repositioning effects arguably suggest the consumer welfare implications of such mergers are ambiguous a priori, it is posited that the observed idiosyncratic preferences for media content among demographic groups may translate into significant losses to consumer welfare in some instances and may also adversely affect some individuals’ participation in civil affairs, such as voting. Finally, the relation of the model to previous empirical work on media mergers and diversity, and the potential for non-traditional policy interventions to offset the competitive harms of such transactions, are also discussed.     

Uncovering Entry Deterrence in the Presence of Learning-by-Doing

This paper investigates a signaling entry deterrence model under learning-by-doing. We show that a monopolist’s practice of entry deterrence imposes smaller welfare losses (or larger welfare gains) when learning effects are present than when they are absent, making the intervention of antitrust authorities less urgent. If, however, the welfare loss associated to entry deterrence is still significant, and thus intervention is needed, our paper demonstrates that the incumbent’s practice of entry deterrence is easier to detect by a regulator who does not have access to accurate information about the incumbent’s profit function. Learning-by-doing hence facilitates the regulator’s ability to detect entry deterrence, thus suggesting its role as an “ally” of antitrust authorities.     

Is FTA/EPA effective for a developing country to attract FDI? The knowledge‐capital model revisited

To prepare an answer to the question of how a developing country can attract foreign direct investment (FDI), this paper explored the factors and policies that may help bring FDI into a developing country by utilising an extended version of the knowledge‐capital model. With a special focus on the effects of a free trade agreement (FTA) or an economic partnership agreement (EPA) between a pair of market and non‐market countries, simulations with the model revealed the following: (i) although FTA/EPA generally tends to increase FDI to a developing country, the possibility of improving welfare through increased demand for skilled and unskilled labour decreases as the size of the country grows; (ii) a developing country may suffer severe welfare losses through FTA/EPA if the availability of skilled labour is extremely limited; and (iii) a developing country can enhance welfare gains from a FTA, and it is even possible to recover the welfare effects from negative to positive, by making the arrangement an EPA.     

Are Bank Mergers Good News for Shareholders? The Effect of Bank Mergers on Shareholder Value in Japan

This study investigates the effects of bank mergers on the welfare of affiliated client firms. The findings demonstrate that, in general, bank mergers increase the welfare of client firms. However, there are significant differences in the impact of a bank merger on client firms across different merger, bank, and firm characteristics. Client firms of banks involved in mega‐mergers do not enjoy an increase in welfare. Client firms of undercapitalized banks in fact suffer significant welfare losses. In the long‐run, weak “zombie” firms also in many cases experience welfare losses following the announcement of a merger by their main bank.     

Openness and optimal monetary policy

We show that the composition of international trade has important implications for the optimal volatility of the exchange rate, above and beyond the size of trade flows. Using an analytically tractable small open economy model, we characterize the impact of the trade composition on the policy trade-off and on the role played by the exchange rate in correcting for price misalignments. Contrary to models where openness can be summarized by the degree of home bias, we find that openness can be a poor proxy of the welfare impact of alternative monetary policies. Using input–output data for 25 countries we document substantial differences in the import and non-tradable content of final demand components, and in the role played by imported inputs in domestic production. The estimates are used in a richer small-open-economy DSGE model to quantify the loss from an exchange rate peg relative to the Ramsey policy conditional on the composition of imports. We find that the main determinant of the losses is the share of non-traded goods in final demand.     

A computable general equilibrium model of international sanctions in Iran

We detail recent international sanctions against the Iranian economy and its government imposed by a subset of developed countries. The effects of these sanctions on the Iranian economy in general and upon upper and lower‐income rural and urban Iranian households, as well as the Iranian government, are modelled using a computable general equilibrium (CGE ) model. We supplement the Global Trade Analysis Project 8 data set using income and expenditure shares from the Urban and Rural Household Income and Expenditure Survey from the Statistical Centre of Iran (SCI ). The model is calibrated to simulate the effects of international sanctions as closely as possible. We use endogenous trade taxes to simulate the effects of sanctions on Iranian oil and petrochemical exports and Iranian imports of petroleum products, metal products and motor vehicles. Our study finds that international sanctions reduced aggregate Iranian welfare by 14%–15%. Rural households in Iran suffered welfare losses which were almost double those experienced by urban households, and the poorest urban and rural households experienced the largest welfare losses, in the order of 5%–10%. But the government of Iran sees a decrease in real revenue of 40%–50%, due to the large negative effect of sanctions on the Iranian oil sector.     

Migration,Unemployment and Trade

Using an oligopoly model of trade with asymmetric costs, we study the individual and world welfare implications of a hub and spoke trade agreement where the hub country is more efficient than spoke countries. Under a hub and spoke trade regime, the hub country can benefit at the expense of the spokes relative to free trade. Furthermore, if the hub is sufficiently efficient compared to the spokes, such a regime can yield higher global welfare than free trade. Preferential treatment of the efficient hub country in its export markets improves world welfare because it helps allocate a larger share of the world’s output to a low cost location.     

A Model of Household Heating Demand: Home Production with Satiety and an Endowment

A model of household indoor temperature choice is developed and empirically implemented taking into account that indoor temperature exhibits satiety, that temperature is an output of home production, and that there is a natural endowment of outdoor temperature. The model is applied to home heating choices and the welfare effects of an insulation retrofit requirement.     

Growing market concentration and changes in consumer welfare: The case of the U.S. commercial airline market

Initial assessments of the economic deregulation of the U.S. airline industry indicated that most consumers gained from the increased competition in the airline market. More recent studies have reached less favorable conclusions. In this study, changes in passenger welfare are determined for 19 U.S. destination cities for the years 1979, 1983, and 1987 on the basis of Hicks' equivalent variation measure, using a counterfactual research design. Particular attention is given to variations in consumer welfare gains/losses depending on (a) the proportion of the change in air fares attributed to deregulation, and (b) the destination airport's classification. The estimates suggest that travelers to large, long-standing hub cities were generally insulated from any large post-1979 welfare changes. Travelers to new hubs experienced substantial welfare declines between 1979 and 1987 — although their post-1983 welfare changes were uniformly positive. Travel to nonhub airports showed the greatest variance, with both the relatively largest welfare gains and the relatively largest losses.     

Potential Profitability and Decreased Consumer Welfare Through Manufacturers' Cents-Off Coupons

This paper examines the potential increase in oligopolistic manufacturers' profits due to a policy of cents-off couponing and the resulting changes in consumer welfare and resource allocation. This paper offers support to the hypothesis that the observed couponing policies of U.S. manufacturers are motivated by their desire to increase profits through third-degree price discrimination—a practice that results in welfare losses to consumers. While some conclusions reached have been dealt with by other researchers, its approach differs in that it attempts to quantify the probable magnitudes of the welfare effects and profit potential of manufacturers' couponing policies within the framework of a third-degree price discrimination model where firms are assumed to behave as Cournot oligopolists.     

Technological convergence,competitiveness, and welfare: A study of international manufacturing industries

In this study, a monopolistic competition model is used to investigate the effects of international technological convergence on factor rewards, output composition, and welfare. Four testable hypotheses on the impact of technological convergence on follower's and leader's competitiveness and welfare are presented. We then use 1993–2001 data from 128 manufacturing industries in 35 countries to test these hypotheses. Results show that followers' relative wages and global value-added shares increase with technological convergence. Followers benefit from convergence's positive income effect. Leader's own technological progress is the key to its welfare improvement, while terms-of-trade effects appear less important.     

Job security,wage bargaining and duopoly outcomes

This paper develops a model where labour supply is constrained because training new workers is costly and redundant workers cannot be fired. An entrant draws labour from an incumbent firm through a wage contest while wages in the latter are bargained with its unionized workers. In a Cournot equilibrium, the union's bargaining power has a positive effect on the incumbent's output, but a negative effect on the industry output. Social welfare under duopoly may fall short of the monopoly level. The distribution of bargaining gains within the incumbent firm is sensitive to whether wage and output choices are made sequentially or simultaneously.