Co-movement and spillovers: empirical evidence from BRIC equity markets

A higher degree of co-movement and spillover effects among different asset classes undermine portfolio diversification benefits. In this regard, the present study attempts to capture dynamic co-movement and return-volatility spillover effects among the most promising emerging equity markets, i.e. Brazil, Russia, India and China in a multivariate framework by employing VAR-ABEKK and VAR-DCC-AGARCH (1,1) models. To further comprehend the behaviour of the correlation coefficients during the global financial crisis period (2007–2009), heat map and Markov regime switching model (two regimes with a switch at ‘mean’ level only) have been used. The results report that the BRIC equity markets do not share a common stochastic trend in the long run. There is strong evidence of market shocks to volatility, volatility to volatility and negative shocks to volatility spillover effects among the BRIC markets. Overall, the BRIC markets are partially integrated with each other, thereby making them stronger investment candidates.     

Volatility spillovers and macroeconomic announcements: evidence from crude oil markets

The paper applies an event study methodologyaims to investigate the macroeconomic announcements effects on Standard&Poor’s500 and oil prices. Our results provide evidence for a significant impact of the US macroeconomic news on oil prices. This impact is split into two components, namely the direct effect (common response) and indirect effect (volatility transmission). Altogether our results show that the volatility transmission is bidirectional. Not only a significant volatility transmission from the oil market to the US stock market is revealed, but also a high volatility transmission is recorded from the oil market to the stock market especially after the release of consumption indicators.     

Reactions of real yields and inflation expectations to forward guidance in the United States

We study the impact of forward policy rate guidance by the Federal Reserve’s Federal Open Market Committee (FOMC) used as an unconventional monetary policy tool at the zero lower bound of the policy rate on real and breakeven US Treasury yield curves. We find that explicit FOMC policy rate guidance announcements led to a significant reduction in real yields at horizons of 2 to 5 years ahead. By contrast, long-term breakeven inflation rates were little affected, suggesting that inflation expectations have remained well anchored, and that explicit FOMC policy rate guidance has not adversely affected central bank credibility.     

Effects of explicit FOMC policy-rate guidance on equities and risk measures

We quantify the impact of explicit Federal Open Market Committee (FOMC) policy-rate guidance used as an unconventional monetary-policy tool at the zero lower bound of the policy rate on US equity prices, as well as on the risk indicators of credit and CDS spreads, implied volatilities and US equity index risk reversals. We find that explicit FOMC policy-rate guidance announcements at the zero lower bound led to a significant increase in US equity prices, for an aggregate equity index as well as for US commercial bank and US nonfinancial equities. Moreover, we find that they led to a significant reduction in some credit spreads. They also led to a significant reduction in an implied volatility index for US government bonds, as well as in the absolute value of US equity risk reversals, implying a lower perceived risk attached to a large fall in the equity index.     

The transmission of euro area monetary policy to financially euroized countries

This paper provides a comprehensive analysis of the interest rate pass-through of euro area monetary policy to retail rates outside the euro area, contributing to the literature on the consequences of unofficial financial euroization and on the transmission channels of monetary policy spillovers. The results suggest that in the long run, more than the one-third of all euro retail rates in euroized countries of central, eastern, and south-eastern Europe is linked to the euro area shadow rate. Compared with euro area monetary policy, the share of cointegration of the domestic monetary policy rate is on average lower, suggesting that domestic central banks in euroized countries with independent monetary policy can only partially control the “euro part” of the interest rate channel. Furthermore, euro area monetary policy shocks are fast and persistently transmitted into euro retail rates outside the euro area, which constitutes an additional channel of international shock transmission.     

Volatility spillovers across daytime and overnight information between China and world equity markets

This article explores the transmission of daytime and overnight information in terms of returns and volatility between Chinese and Asian, European and North American main stock markets. We propose a bivariate analysis with China as benchmark. By testing the constancy of the conditional correlations, we use an extended constant or dynamic conditional correlation GARCH model. The empirical findings show that across the daytime information transmissions, the relationships between China and Asian markets are closer than China and non-Asian markets, whereas through the overnight information transmissions these relationships are inverse. The analysis provides, before the crisis, that the overnight volatility spillover effects are from China to the United States and the United Kingdom. During the crisis, China affects the United Kingdom in terms of daytime volatility spillovers, whereas in terms of overnight volatility spillovers China affects the United States and is influenced by Japan. After the crisis, daytime volatility spillovers are from Taiwan to China, whereas the overnight volatility spillover effects are from China to the United States and the United Kingdom.     

Central Bank Digital Currency: optimization of the currency system and its issuance design

Central Bank Digital Currency (CBDC) contributes to optimizing payment functions of fiat money, reducing reliance on payment services provided by the private sector, alleviating regulatory burdens and pressure on the central bank, and strengthening the authority of fiat money. Moreover, issuance of CBDC helps to address dilemmas of modern monetary policies, including inefficiencies in policy transmission, difficulties in countercyclical control, flow of currency away from the real economy to the virtual economy and inadequate management of policy expectations. This paper proposes a CBDC issuance framework based on forward contingencies. The incorporation of time, sector, and loan rate contingencies in the activation of CBDC will realize real-time transmission of monetary policy, enable targeted supply of money and prevent the currency from circulating beyond the real economy. The economic state contingency makes it possible to exercise countercyclical control of currency. The embedment of these contingencies also enables currency to perform the function of forward guidance.     

货币政策是否应关注资产价格——基于货币稳定的视角

货币稳定是一个伴随着货币交易范围扩展而不断拓展的概念,资产交易规模使资产价格波动能严重影响货币稳定和社会福利,因此,货币稳定应当包括资产价格稳定。利用中国1998-2009年月度、季度数据,以及协整检验、误差修正估计和方差分析等方法研究后得出:资产价格与传统通货膨胀指标现值及预期值存在联动性、与经济运行中的货币存量具有显著的数量解释关系,资产价格通过影响消费、投资等经济因素冲击着货币政策效果;货币政策对维护包括资产价格在内的货币稳定并非无能为力,经验表明资产价格往往对货币政策调整做出积极反应。因此,货币稳定指标应根据传统通货膨胀指标和资产价格指标综合计算,即货币政策应根据资产价格传导机制,精确分析资产价格与货币中介目标的关系,准确采取政策工具。     

Volatility spillovers of unconventional monetary policy to emerging market economies

Emerging market economies (EMEs) have experienced waves of market volatility since the global financial crisis, with some commentators ascribing this at least partly related to monetary policy decisions in advanced economies. This paper examines volatility spillovers from changes in the size of the balance sheets of the Federal Reserve (FED) and European Central Bank (ECB) to EMEs from 2003 to 2018. We find that volatility spillovers to EME currency markets are greater in magnitude from the FED, while EME stock and bond markets are also vulnerable to volatility spillovers in a similar magnitude from both the ECB and the FED. We find only limited evidence of volatility transmission to the real economy of EMEs following the monetary policy actions of the FED and ECB. Finally, we show that the proportion of the volatility in EMEs that is accounted for by changes in FED and ECB balance sheets shifts over time. Our paper has important policy implications for EMEs, notably in respect of volatility transmission channels.     

Fed and ECB monetary policy spillovers to Emerging Market Economies

This paper presents evidence that the international spillovers of both Fed and ECB conventional monetary policies to Emerging Market Economies (EMEs) are global. The result comes from the panel Bayesian Vector Autoregressive (BVAR) model estimated for EMEs in which we control i.a. for foreign central banks’ policy shocks. Furthermore, in the separate BVAR model for Central and Eastern European (CEE) countries we show that the ECB is the main foreign central bank for these economies — after controlling for its shocks, their Fed counterparts play a very moderate role in driving GDP and prices in CEE.     

Finance constraints and technology spillovers from foreign to domestic firms

Scholars have suggested that externalities such as technology spillovers to domestic firms from the entry and presence of foreign firms – i.e., Foreign Direct Investment (FDI) spillovers – arise only when domestic firms possess adequate absorptive capacity. But they have also maintained a predominantly technological focus in their conceptualization of absorptive capacity, treating it mostly as a function of domestic firms' technological investments. Yet, several anecdotes point to finance constraints being equally important hurdles to absorbing technology. Given the comparatively scant attention to finance constraints in the FDI spillover literature, we present theoretical arguments and a counterfactual simulation for how finance constraints influence firms' realization of FDI spillovers. In the process, we identify two mechanisms underlying why firms facing high finance constraints experience lower FDI spillovers. (125 words).     

Cross-country fiscal policy spillovers and capital-skill complementarity in integrated capital markets

The 2010 European sovereign debt crisis has renewed discussions on fiscal policy coordination. One rationale for coordination is fiscal policy cross-country spillovers. A common finding in the literature is that spillovers tend to be small in normal circumstances but can be large if monetary policy is at the zero lower bound. Orthogonal to the existing literature, we document a novel channel that generates cross-country spillovers over the medium run. We assume perfect capital markets integration and find that capital-skill complementarity can lead to large spillovers without the zero lower bound nor a large import share in government expenditures. As capital markets have become increasingly integrated in the Eurozone, the current degree of fiscal policy coordination between its members, low, may be insufficient. We also find that the smoothing benefits from a temporary rise in public debt spill over to other countries.     

Jump risk of Presidential election: evidence from Taiwan stock and foreign exchange markets

This article employs jump-diffusion models, including the ARJI model and the GARCH-jump model, to examine jump intensity and volatility of Taiwan stock and foreign exchange markets during a Presidential election period. The empirical results indicate that, firstly, the ARJI model fits data better than the GARCH-jump model. Secondly, the Presidential election events enhance the jump intensity of both markets and the jump-induced variance is higher than diffusion-induced variance. It reveals the importance of the discrete jump process during a Presidential election period, and might provide some implications for option pricing or hedging strategy. Due to the intervention of the Central Bank in the foreign exchange market during a Presidential election period, the results indicate that jump intensity and volatility of jump size are more moderate.     

Technological and geographical proximity effects on knowledge spillovers: evidence from the US patent citations

The purpose of this paper is to investigate the pattern of knowledge flows as indicated by the patent citations in three areas: USA, Japan and Europe. In each economic area, we use information from United States Patent and Trademarks Office data to assess empirically the impact of the technological and geographical proximities for 530 international firms. In particular, the contribution to the existing literature is twofold: first, we use an international sample in such a way that we may compare the empirical results among different economic markets; second, we extend the analysis of the determinants of knowledge spillovers, taking into account the time dimension of the effects of the proximities. In order to compute the technological proximity, we follow the methodology developed by A.B. Jaffe (1986 Jaffe, A. B. 1986. Technological opportunity and spillovers of R&D: Evidence from firms’ patents, profits and market value. American Economic Review, 76(5): 984–1001. [Web of Science ®] , [Google Scholar]. Technological opportunity and spillovers of R&D: Evidence from firms’ patents, profits and market value. American Economic Review 76, no. 5: 984–1001), where a technological vector is based on the distribution of patents of each firm across technology classes. As far as the geographic proximity is concerned, we use the latitude and the longitude coordinates of the city in which each firm is situated to obtain the distance, in miles, between the firms. The empirical results, in line with results from previous studies, indicate that there is a statistically significant relationship between the knowledge flows, proxied by the patent citations, and the proximities, but the effects are rather differentiated according to the proximity type.     

The two ways of FDI R&D spillovers: evidence from the French manufacturing industry

Using French firm-level panel data, this study investigates R&D spillovers from inward foreign direct investment (FDI) with respect to both horizontal and vertical linkages (backward and forward). Using a Crepon, Duguet and Mairesse (CDM) model, we estimate an R&D-augmented Cobb–Douglas production function to assess the impact of R&D spillovers on firm performance. The results emphasize that international spillovers (from foreign affiliates to local firms) have a greater effect on firm performance than reverse spillovers (from local firms to foreign affiliates) and are more likely to be backward than forward. Moreover, the effect of backward spillovers depends on a firm’s absorptive capacity and is amplified in the case of outsourcing relationships.     

Estimating the effects of forward guidance in rational expectations models

Simulations of forward guidance in rational expectations models should be assessed using the “modest policy interventions” framework introduced by Eric Leeper and Tao Zha. That is, the estimated effects of a policy intervention should be considered reliable only if that intervention is unlikely to trigger a revision in private sector beliefs about the way that monetary policy will be conducted. I show how to constrain simulations of forward guidance to ensure that they are regarded as modest policy interventions and illustrate the technique using a medium-scale DSGE model estimated on US data. I find that many experiments that generate the large responses of macroeconomic variables deemed implausible by many economists – the so-called “forward guidance puzzle” – are not modest policy interventions. Those experiments should therefore be treated with caution, since they may prompt agents to believe that there has been a change in the monetary policy regime that is not accounted for within the model. More reliable results can be obtained by constraining the experiment to be a modest policy intervention. In the cases I study, the quantitative effects on macroeconomic variables are more plausible when this constraint is imposed.     

Knowledge spillovers and R&D subsidies to new,emerging technologies

Is knowledge spillover a rationale for supporting R&D on new, emerging technologies more than R&D on other technologies? In this paper, I analyze whether innovation externalities caused only by knowledge spillovers differ between technologies of different maturity. I show that R&D should not be subsidized equally across industries when the knowledge stocks differ. This is because knowledge spillovers depend on the size of the knowledge stock and the elasticity of scale in R&D production. R&D in the emerging technology should be subsidized more when the elasticity is smaller than one. However, R&D in the mature technology should be subsidized more when the elasticity is larger than one.     

Volatility transmission between Islamic and conventional equity markets: evidence from causality-in-variance test

This study examines whether a volatility/risk transmission exists between the Dow Jones Islamic stock and three conventional stock markets for the United States, Europe and Asia during the pre- and the in- and post-2008 crisis periods. It also explores the volatility spillover dynamics between those markets and US Monetary policy, oil prices, global financial risk and uncertainty factors. The recently developed Hafner and Herwartz (2006)’s causality-in-variance test provides evidence of risk transfers between these seemingly different equity markets, indicating a contagion between them during the full sample and the subperiods. The volatility structure of these markets is dominated by short-run volatility in the first period and by high long-run volatility in the second period. The volatility impulse response analysis indicates a similar volatility transmission pattern although it is characterized by a more volatile and short-lived structure in the second period. It also appears that the Islamic equity market responds to shocks from the risk factors and not from the oil price and the US economic policy uncertainty index during both periods.     

货币政策前瞻性指引有助于稳定经济——基于预期视角的数量分析

预期在广义虚拟经济中处于重要地位,是经济活动的主要驱动力之一,而货币政策前瞻性指引即是通过引导公众形成对货币政策的预期以达到维护经济稳定的目的。本文在新凯恩斯动态随机一般均衡模型框架下,运用贝叶斯方法,从预期的角度研究我国货币政策前瞻性指引需针对的主要经济目标及预期冲击影响宏观经济的数量特征。研究发现,货币政策预期冲击的短期效应更强;货币政策预期冲击对通胀的影响显著,其次是对就业的影响,对产出、消费、投资和资本的影响相对较小;通胀与产出、消费、投资和资本同方向波动。实行货币政策前瞻性应主要针对通胀和就业目标,引导公众形成可预期的货币政策环境有助于维护宏观经济的稳定。     

应对资产价格波动的货币政策选择与均衡框架构建

资本市场的快速发展,使资产价格波动与货币政策效果之间的关联性不断加大.货币政策是否应当和应该如何对资产价格波动作出反应,多年来吸引了众多学者和货币政策制定者的高度关注.综合已有的理论实践和我国货币政策操作的现实,虽然目前资产价格还不具备作为我国货币政策独立调控目标的条件,但是有必要将其作为货币调控的辅助监测指标纳入中央银行货币政策操作的视野.央行应尽快建立与资产价格监测相关的指标体系,形成考虑资产价格波动因素的货币政策传导机制,构建均衡实体经济与虚拟经济的货币政策操作框架.