Central bank intervention,the current account,and exchange rates

This paper seeks to explain exchange rate and current account or net foreign assets behavior under central bank foreign exchange rate intervention. To analyze central bank intervention we use the current account-net foreign assets identity, as well as the long-run monetary exchange rate model. The intervention function is one where exchange rate deviations from equilibrium are governed by nonlinear adjustments. That is, exchange rate deviations from their long-run equilibrium are such that the degree of reversion towards equilibrium increases with the size of the deviation from equilibrium. In this type of nonlinear function exchange rates determine the current account, and the current account in turn determines exchange rates. This iterative duality contrasts with several portfolio balance models where exchange rates are a function of trade, but trade is not a function of exchange rates. This two way causality is slightly more complex, but is also analytically richer than assuming that exchange rates change solely in a one step process as targeted by central banks. Managing exchange rates is posited to be an active iterative feedback process where intervention changes the current account, which may in turn make further intervention necessary.     

Accounting for global dispersion of current accounts

We develop a multi-country quantitative model of the global distribution of current account and external balances. Countries accumulate domestic capital and foreign assets to smooth consumption over time against exogenous productivity shocks in the presence of liquidity constraints. In equilibrium, optimal consumption and investment responses to persistent productivity shocks imply a degree of intertemporal substitution across countries that can explain up to one-third of the current account dispersion in the data.     

NATIONAL AND SECTOR BALANCE SHEETS IN CONCEPT AND IN PRACTICE

National and Sector Balance Sheets are playing an increasingly important role in economic analysis. This article reviews the actual and potential applications and considers whether there is a case for modifying SNA practice and recommendations to increase the value of the contribution that balance sheets can make to analytical work.
The major sections of the article relate respectively to financial and non-financial items in national and sector balance sheets. In the context of financial items, there is discussion of the perception of what constitutes an individual's total financial portfolio and therefore which items should be included or excluded when assessing the financial assets of the household sector (e.g. various forms of pension entitlement and life assurance). The relevance of marketability is considered as is the possibility of attempting to identify a separate domestic households sub-sector. The other main topic considered in relation to financial balance sheets is the relevance of adopting a single approach to valuation; alternatives are considered in relation to the stock of public sector debt.
So far as non-financial assets are concerned, difficulties arise with the national accounting practice of treating the acquisition of consumer durables and military assets as current expenditure. While it is considered, on balance, best to continue to treat the purchase of consumer durables as current expenditure, though recording the value of the stock of durables outside the main body of balance sheets, it is recommended that "non-fighting" assets such as transport ships and aircraft and hospitals should be treated as capital assets. The treatment of sub-soil assets and the valuation of fixed assets is also discussed.
Reconciling balance sheets with flows data is an essential step if balance sheets are to be fully exploited; some comments are offered on the UN guidelines on this topic.     

An essay on the Life Cycle: Characterizing intertemporal behavior with uncertainty,human capital,taxes, durables,imperfect capital markets,and non-separable preferences

This paper formulates a general characterization of a household's portfolio choice and savings behavior in an environment with uncertain future interest rates, prices, wages, and factors influencing tastes. Savings may be invested in three types of assets: financial assets; human capital, which is non-tradable; and consumer durables, in which investment may be partially irreversible. Risk-return relations determine the optimal allocation of resources across assets at a point in time. The optimal intertemporal allocation of resources is determined by a restriction on the planned growth rate for the marginal utility of after-tax wealth, where growth rates depend on rates of time preference and measures of long-term riskless rates of interest. Given special assumptions, this marginal utility follows a martingale process as a consequence of optimizing behavior. Pricing formulae are developed for evaluating shifts in uncertain future income, wage, and price profiles. The relations characterizing portfolio and savings behavior presented here do not rely on particular distributional assumptions; they account for all forms of uncertainty including wage uncertainty induced by human capital investment; they allow for the non-marketability of assets; and the main results apply for very general functional form assumptions for preferences. In later sections, results are extended to incorporate income taxes and to account for a wide variety of imperfections in asset markets.     

The impact of financial regulation on current account balances

Both global imbalances and financial market deregulation feature prominently among the potential causes of the global financial crisis, but they have been largely discussed separately. In this paper, we take a different angle and investigate the relationship between financial market regulation and current account balances, an area for which limited empirical evidence exists. We use a panel of countries over the period 1980–2010 and employ a novel empirical approach which allows us to simultaneously account for model uncertainty, current account persistence and unobserved heterogeneity. We find robust evidence that financial market regulations affect current account balances and that different aspects of these regulations can have opposing effects on the current account. In particular we find that easing bank entry barriers is negatively associated with the current account balance. In contrast, bank privatization and securities market deregulation tend to raise current account balances. Our results also highlight the importance to control for persistence and unobserved heterogeneity. Once we control for these factors, we find robust evidence for a wide range of current account theories in contrast to previous studies accounting for model uncertainty.     

Status Preference, Wealth and Dynamics in the Open Economy

Abstract. The implications of status preference in a simple open economy model are investigated in this paper. The open economy is modeled as a continuum of identical representative agents who have preferences over consumption and status. In the paper status is identified as relative wealth, which takes the form of relative holdings international financial assets. A symmetric macroeconomic equilibrium is derived in which status is the source of transitional dynamics for domestic consumption and the current account balance. This result illustrates another way to combine transitional dynamics with interior equilibria in the small open economy Ramsey model with perfect capital mobility. We also show that status preference plays a critical role in influencing the open economy's adjustment to government expenditure and world interest rate shocks.     

A possibilistic portfolio adjusting model with new added assets

In order to fit changes in financial markets, portfolio managers often need to revise an existing portfolio. This article analyzes the portfolio adjusting problem with new added assets. We propose a possibilistic portfolio adjusting model with transaction costs and bounded constraints on holdings of assets, which can be transformed into a linear programming problem. Both the lower bounds on holdings and the total investment constraints influence the optimal portfolio adjusting strategies. Furthermore, a numerical example of a portfolio adjusting problem is given to illustrate our proposed effective approaches. The numerical results show the case that investors do not need to invest total capital and to hold all assets in the portfolio for some required return levels.     

Trade imbalances within the euro area and with respect to the rest of the world

Many studies have explored the determinants of current account balances in Europe. However, only in a few studies has trade balance been decomposed into intra balance, trade balance vis-à-vis the euro area, and extra balance, trade balance vis-à-vis the rest of the world. This decomposition is necessary for us to understand why some core euro area countries are acting as financial intermediaries for the periphery countries. Furthermore, the determinants of intra and extra balances might be different because nominal exchange rate cannot adjust between the EMU countries while their financial markets are highly integrated. Thus, we apply this decomposition and supplement the previous studies by including a larger set of theoretically plausible explanatory variables, which is derived from the current account literature. Our contribution is twofold: We observe that, contrary to Schmitz and von Hagen (2011), the introduction of a common currency has not increased the elasticity of net capital flows to per capita incomes within the euro area for the member countries. On the other hand, there is a great heterogeneity among the usual determinants of trade balances whether those contribute to intra balances or extra balances. These results increase our understanding of the imbalances in the euro area.     

Surviving Asymmetry in Capital Flows and the Business Cycles: The Role of Prudential Capital Controls

Past literature of different strands has pointed to a potential asymmetry: while portfolio capital inflows are largely irrelevant to the economy, capital outflows can cause recession. In a model with a convex investment and portfolio balance adjustment cost, and endogenous credit‐in‐advance constraint, we find that investment is determined solely by opportunity cost of physical capital unrelated to portfolio capital inflows when the constraint is slack. However, once credit availability is tightened up by capital outflows, the negative liquidity constraint dominates the opportunity‐cost factor, causing an economic downturn. Financial fragility against capital outflows is an outcome of pecuniary externalities, which, however, can be moderated by prudential capital controls. Even when exchange rates float freely, capital controls ease the macro‐stabilizing burden of monetary policy, as they help shield the economy from financial instability. Prudential tax on foreign debt is most preferred, and works the best when the exchange rate float is managed.     

A varying-parameter emprical model of balance of payments determination under fixed exchange rates: results for the UK and West Germany

The post-war period and particularly the 1960s witnessed a marked increase in the degree of international capital mobility due to various factors. Empirical studies of international financial flows during the 1960s generally balance model of the external account is developed which structural instability. A portfolio balance model of the external account is developed which allows a varying level of capital mobility and which nests the pure monetary model (perfect capital mobility). The upshot is a varying-parameter empirical specification. This is estimated for the UK and West Germany using Kalman filtering techniques. The model performs well and indicates an upward trend in capital mobility over the period, particularly after 1968.     

Current Account Imbalances and Foreign Investment: A Theoretical Analysis of Interrelationships and Causalities

This paper develops a unified structure to examine the interrelationships between current account, foreign investment, and domestic capital accumulation. In particular, we develop a two‐country, two‐period model with international mobility of both physical and financial capital, and endogenous domestic capital accumulation. We consider cases where (i) current account is endogenous, but foreign investments are exogenous, and (ii) current account is exogenous, but foreign investments are endogenous. For (i), we examine how inflow and outflow of foreign physical capital affects current account. For the second case, we examine how an increase in current account deficit affects foreign investments. The complementarity or substitutability of foreign capital and domestic capital turns out to be crucial to the relationship between current account deficit and foreign investment.     

ON THE ROLE OF THE GROWTH OPTIMAL PORTFOLIO IN FINANCE

The paper discusses various roles that the growth optimal portfolio (GOP) plays in finance. For the case of a continuous market we show how the GOP can be interpreted as a fundamental building block in financial market modeling, portfolio optimisation, contingent claim pricing and risk measurement. On the basis of a portfolio selection theorem, optimal portfolios are derived. These allocate funds into the GOP and the savings account. A risk aversion coefficient is introduced, controlling the amount invested in the savings account, which allows to characterize portfolio strategies that maximise expected utilities. Natural conditions are formulated under which the GOP appears as the market portfolio. A derivation of the intertemporal capital asset pricing model is given without relying on Markovianity, equilibrium arguments or utility functions. Fair contingent claim pricing, with the GOP as numeraire portfolio, is shown to generalise risk neutral and actuarial pricing. Finally, the GOP is described in various ways as the best performing portfolio.     

DEGREASING THE WHEELS OF FINANCE

Can there be too much trading in financial markets? We construct a dynamic general equilibrium model, where agents face idiosyncratic liquidity shocks. A financial market allows agents to adjust their portfolio of liquid and illiquid assets in response to these shocks. The optimal policy is to restrict access to this market because portfolio choices exhibit a pecuniary externality: Agents do not take into account that by holding more of the liquid asset, they not only acquire additional insurance against these liquidity shocks, but also marginally increase the value of the liquid asset, which improves insurance for other market participants.     

Malaysia’s current account deficits: an intertemporal optimization perspective

The study examines the account imbalances in Malaysia during the past four decades. Using Sachs’s (National Bureau of Economic Research, Working Paper No. 859, 1982) intertemporal model, we address the issue of external solvency by measuring the deviation of actual from the optimal path of the current account balance. All in all, we found that the actual path moves reasonably close to the estimated consumption-smooth currents accounts, suggesting that the current account balances satisfy the external solvency condition. The major findings from the empirical application of the model revealed the following: (i) the deficits of the 1990s prior to 1997 financial crisis were sustainable; (ii) the evidence appears to suggest that the current account balance broadly follows the same pattern of the intertemporal model and hence suggests that capital is mobile; (iii) the large surpluses observed during the post-1997 period significantly deviate from the optimal path, implying that consumption is unsustainable and is expected to fall in the near future and; (iv) there is excessive volatility in international capital movements for consumption-smoothing purpose.      

THE DISTRIBUTION OF BETAS IN PRESENCE OF NONTRADED ASSETS

This study considers a capital assets pricing model (CAPM) in an incomplete financial market wherein not all risky assets are traded and the risk from non‐traded assets is not orthogonal to that of the existing or traded assets. The model shows the extent of the divergence of the CAPM betas (true betas) from the traditional CAPM betas (perceived betas) in market equilibrium conditions in an incomplete market. Specifically, it implies that the more incomplete a financial market is, the wider is the discrepancy between the true and perceived betas, and the distribution of the perceived betas tends to centre more around 1 in an incomplete market than that of true betas. Empirical evidence in various settings support these results.     

Credit crunch in a model of financial intermediation and occupational choice

In this paper, we introduce a dynamic general equilibrium model with numerous and heterogeneous investment projects and endogenous occupational choice to study a credit crunch. Asset accumulation of assets by households as they face various employment and return risks over a long lifetime determines whether they are entrepreneurs or workers. The origin of a credit crunch may be found in the conservative lending by banks during periods of financial duress and reduced profitability because of capital requirements. Using an example from Canada, monetary policy is shown to be largely ineffective in alleviating the credit crunch, while flexible loan regulation can erase it.     

房屋拆迁与家庭金融风险资产投资

文章基于心理账户和资源保存理论,利用2011年中国家庭金融调查数据,考察了房屋拆迁对家庭金融风险资产投资的影响及其机制.研究结果表明,房屋拆迁显著增强了家庭投资金融风险资产的意愿,提高了家庭在金融风险资产上的投资比重.财富损失预期在房屋拆迁影响家庭金融风险资产投资中起了显著的中介作用,而这一中介效应受到社会保险的正向调节.文章从经济学、管理学和心理学相融合的视角进行分析,为人类经济行为和结果提供了新见解;同时,研究结论对拓宽居民家庭投资渠道、深化金融体制改革和促进经济增长具有重要的参考价值和指导意义.     

The impact of international financial integration on economic growth: New evidence on threshold effects

Recent research highlights that countries differ with respect to their experience with capital flows and do not systematically gain from capital account liberalization. This paper contributes to the empirical literature that investigates the circumstances under which international financial integration (IFI) is growth-enhancing. Relying on non-linear dynamic panel techniques, we find that countries that are able to reap the benefits of IFI satisfy certain threshold conditions regarding the level of economic, institutional and financial development, and government spending. Our results also reveal a differentiated behavior of FDI and portfolio equity liabilities compared to other types of capital flows, with threshold conditions being systematically less restricting for the former and growth effects significantly larger.     

跨境资本流动与宏观周期研究述评

实际经济周期理论(RBC)无法解释国内偏好(Home Bias)和资产异质性(Idiosyncratic Asset)问题,因而无法全面阐释金融危机时期国际资本流动。通过大量文献将投资组合理论引入开放动态随机一般均衡(ODSGE)模型较好地解决了以上问题。与此同时,对国际资本流动的研究从一阶矩扩展到二阶矩,即由单独关注收益因素到关注收益因素并关注风险因素,构建了研究国际资本流动与经济周期波动一般性分析框架。这一新进展对于研究中国实施资本管制和构建国际资本流动管理体系具有较强的理论和现实意义。文章对以上研究成果进行了梳理,重点梳理了跨境资本流动与金融危机、周期波动的相关研究并对之进行述评。     

The Intertemporal Equilibrium Modeling of Intra-EMU and Global Trade Imbalances

The intertemporal equilibrium approach to current accounts analyzed the impacts of respective intra-European Monetary Union (intra-EMU) and Asian-U.S. financial integration between 1999 and 2007 on the intra-EMU current account and global trade imbalances. Moreover, Farmer and Ban (2014) find in a three-country, two-region overlapping generations model that financial integration between both the EMU core and periphery and between Asia and the U.S. induce trade surpluses in the EMU core and Asia, while in the EMU periphery and in the U.S., trade balances become negative when the global economy is dynamically inefficient. In this paper, we first show that in a numerically specified Farmer-Ban model, steady-state trade balance to gross domestic product ratios are too low compared to the empirically observed counterparts. We suggest avenues to ameliorate this problem.