应对新冠疫情冲击的货币政策国际协调*

新冠疫情冲击了世界经济增长和金融市场稳定。很多国家推出极度宽松货币政策应对危机。从经典货币政策国际协调的博弈理论来看，应对本次疫情冲击的各国货币政策协调性不足，“以邻为壑”的非合作均衡效果明显。为数不多的货币政策协调也存在执行力不足、深度与广度不够、新兴市场国家话语权低等问题。在世界经济紧密联系、货币政策溢出效应加强的背景下，为了应对疫情冲击，国际组织需要创设协议和合作剩余分配机制，寻找货币政策刺激效果和防止国际资产泡沫之间的平衡，加强政策沟通和信息共享，提高新兴市场国家话语权，建设有效的应对危机的货币政策国际协调机制。中国应在“一带一路”倡议的框架下建立长期货币政策协调机制，在现有的IMF和G20等平台上发挥发达国家与新兴市场国家之间的协调桥梁作用，通过持续开展央行间技术性合作等措施参与和推进协调进程。     

Dynamics of capital account and current account in Sri Lanka

This paper enquires the dynamics of current account and capital account in Sri Lanka for the period 2001:Q1 to 2016:Q1 and also examines the role of some policy variables such as exchange rate and interest rate in this dynamics. Estimated autoregressive distributed lag (ARDL) bound testing approach to cointegration followed by error correction representation of the ARDL model have found that current account is caused by capital account and exchange rate, where capital account causes to produce a deficit in current account. In the dynamic adjustment of current account due to exchange rate, an evidence of J-curve phenomenon is noticed. Capital account is neither caused by current account nor by exchange rate but interest rate has a positive impact on it. Robustness of these findings is testified by the vector autoregression model, Wald test of Granger causality followed by an impulse response analysis and a variance decomposition analysis. These analyses, in addition, establish a negative impact of interest rate on current account. With the best of knowledge this is the first study that reveals the dynamics of current and capital account of Sri Lanka. Such a dynamics is critical from the policy perspective. Policy makers should caution before capital account liberalization.     

On credit and output: Is the supply of credit relevant?

The consensus that changes in the supply of credit were irrelevant to making monetary policy decisions existed among macroeconomists during the second half of the twentieth century. Transmission of shocks to the real economy through changes in the supply of credit, however, played an important role in the recent U.S. financial crisis. This paper explores the extent to which policymakers should consider changes in the supply of credit when making forecasts and monetary policy decisions. More specifically, it considers whether a measure of real credit balances offers consistent and stable information, beyond that of a real interest rate and real money balances, about future output gaps during the U.S. post-war era. Results yield evidence that changes in real credit balances are the only variable, among those considered, to provide consistent and stable information about future output gaps over the entire sample period. Each information variable, however, provides relatively little value added for forecasting future output gaps, beyond a simple autoregressive model. To improve upon forecasts and monetary policy decisions, policymakers therefore should consider a broader range of information variables and occasionally reassess the relative weightings assigned to each.     

Copyright: a systemic marketplace icon

This article argues that copyright is a systemic marketplace icon because of the breadth of its effects on market operations. Copyright determines how intellectual property rights for creative work are allocated between the different actors involved in production and consumption, and must balance the civic priority of public access to creative work with the market-driven principle of rewarding private interests for their effort. This duality tends to polarise opinion about its implementation by rights holders, because very different ideological assumptions underpin civic and market objectives. Copyright discourses reveal how these ideological struggles play out among interested parties, who use the concept of copyright to make arguments about how markets should be structured, how creative work should be exchanged, and how consumers should behave. In the process, copyright is constructed, explained, branded and promoted as an object to which market actors must orient themselves if they wish to conduct themselves appropriately, and as a rationale for material changes to market structures. At the same time, copyright discourses reveal the implications of copyright, which invoke both the market and democracy, for the quality of democracy, the circulation of creativity, and the availability of public knowledge, and help explain why ideological struggles over copyright are so difficult to resolve.     

湖南省农业生态与农业经济耦合性测度

[目的]考察湖南省近9年来农业生态与农业经济系统耦合发展现状,探究二者发展过程中的规律,以期找出二者协调发展模式,并为湖南省农业生态环境保护、农业经济发展提供决策依据。[方法]运用耦合协调度模型,基于熵权法为各指标进行客观确定权重,结合2007~2015年湖南省农业生态与农业经济发展的相关数据,确定农业生态与农业经济的耦合匹配分析模型,采用熵值赋权法确定各项指标的权重,构建农业生态—农业经济耦合协调评价指标体系。[结果]研究结果表明,2007~2015年湖南省农业生态与农业经济的耦合协调发展基本稳定,耦合度值均在0.9以上,二者呈协调发展趋势。其中,2014年和2015年二者的耦合度较高,分别为0.975 3和0.984 3,说明湖南省在这两年的农业生态与农业经济的协调性好,农业经济与农业生态能够相互有效促进彼此的发展。同时,仍需时刻关注生态环境的承载力,降低对自然资源的无序攫取,实现经济的可持续发展。     

Estimating yield curves of the U.S. Treasury securities: An interpolation approach

Following the approach of interpolation, this paper proposes the multiple exponential decay model to fit yield curves for both the U.S. TIPS market and the conventional Treasury security market. Several estimation methods, including the unconstrained/constrained nonlinear minimization, quadratic programming, and the iterative linear least squares, are applied to estimate the unknown parameters according to different curve‐fitting purposes. Comparisons between the proposed model and the alternatives show that the multiple exponential decay successfully (1) adapts to a variety of shapes associated with yield curves, (2) (partially) keeps in line with the economic interpretations of Nelson–Siegel summarized by Diebold and Li ( 2006 ), and (3) dominates the competing models in curve‐fitting performance measured by mean fitted‐price errors over the sample period. In addition, the exact specification of a nonparametric interpolation model is pinned down by applying three statistical tools, which enable us to jointly take into account validity, optimality, and parsimoniousness of the proposed model.     

Risk‐taking channel of monetary policy

One of the most robust stylized facts in macroeconomics is the forecasting power of the term spread for future real activity. We propose a possible causal mechanism for the forecasting power of the term spread, deriving from the balance sheet management of financial intermediaries and the “risk‐taking channel of monetary policy.” Monetary tightening leads to the flattening of the term spread, reducing net interest margin and credit supply. We provide empirical support for the risk‐taking channel.     

Orchestrating corporate social responsibility in the multinational enterprise

Research Summary: Multinational enterprises (MNEs) invest significant resources in corporate social responsibility (CSR), but their attempts to build a global “social brand” may clash with the execution of operational strategies at a subsidiary level. Using a game-theoretic model, this research addresses the complex interplay of different contingencies that shape the coordination and control challenges facing MNEs when they implement global CSR strategies, including brand spillovers, the risk of public scandals caused by irresponsible behavior, the size of the MNE network, as well as the roles played by nongovernmental organizations and altruistic managers. Challenging the view of CSR as insurance against lapses of responsible conduct, our model shows that investment in social brands helps avoid irresponsible practices across the MNE network, thereby inducing subsidiaries to “walk the talk.” Managerial Summary: Global social brands are increasingly valuable to multinational enterprises (MNEs), which makes the control and coordination of responsible behavior across their network of foreign subsidiaries a relevant managerial challenge. Indeed, lapses of responsible conduct at the subsidiary level often generate reputational damage at the multinational level. This research explores several mechanisms that help MNEs manage this coordination and control challenge. First, it shows under what conditions MNEs can leverage their investments in social brands to induce responsible practices across their global network. Second, it illustrates how MNEs can exploit collaborations with nongovernmental organizations to reduce the costs of coordinating and controlling their subsidiaries. Finally, it identifies conditions under which MNEs benefit from hiring altruistic managers to run their subsidiaries.