Time-frequency co-movement and network connectedness between green bond and financial asset markets: Evidence from multiscale TVP-VAR analysis

This study examines the time-frequency co-movement and network connectedness between green bonds and other financial assets in China. We propose wavelet coherence and multiscale TVP-VAR to explore the time-frequency co-movement and spillover connectedness. The empirical results are as follows. First, green bonds positively co-move with conventional bonds across time scales and negatively co-move with stocks and commodities. Second, there is a significant network connectedness of green bonds with conventional bonds in the short term, and the connectedness with stocks and commodities gradually strengthens with the increase in time scales. Third, the dynamic spillover between green bonds and other assets is much greater in the long and medium terms than in the short term. Finally, under crisis shocks, the spillovers spike temporarily in the short term, while they are persistent and at a high level in the long term. Overall, some practical implications are proposed for investors and policymakers.     

Do auditors’ early-life socioeconomic opportunities improve audit quality? Evidence from China

Prior research documents significant variation in audit outcomes based on individual auditors' demographic features, working experience, educational background, and social connections. This study examines whether individual auditors' early-life socioeconomic opportunities also affect audit practices. We expect that auditors from big cities have more access to socioeconomic opportunities and accumulate more human capital in early life, thus are more capable of providing high-quality audits after they start careers. Consistent with this hypothesis, we find that auditors from big cities make more audit adjustments to earnings compared with auditors from small towns. Additional tests suggest that this early-life effect on audit quality is moderated when auditors receive higher education or gain more auditing experience and is more pronounced in downward adjustments than in upward adjustments. We also find a fee premium for auditors from big cities. Overall, this paper provides evidence that auditors’ early-life socioeconomic opportunities have a far-reaching influence on audit quality.     

Dependence and risk spillovers among clean cryptocurrencies prices and media environmental attention

This paper examines the relationships among cryptocurrency environmental attention and clean cryptocurrencies prices using Time-Varying Parameter Vector Auto-Regression (TVP-VAR) and wavelets techniques. Results show strong connectedness among these variables, implying that the prices of clean cryptocurrencies are influenced by attention on cryptocurrency sustainability. Connectedness is stronger with positive shocks on environmental attention than negative shocks. Also, in the short-term, clean cryptocurrencies prices lead environmental attention, especially after 2021. However, there are notable periods when environmental attention led clean cryptocurrency prices before 2021. In the long-term, clean cryptocurrencies such as Hedera, Polygon, Cosmos, IOTA, TRON, Stellar, Tezos and Ripple lead environmental attention. In the presence of bitcoin, the degrees of connectedness increased across both shocks on cryptocurrency environmental attention. In all cases, the bitcoin market is the main destination of shocks from the system. We highlight some crucial implications of these results.     

Dynamic spillover effects among green bond,renewable energy stocks and carbon markets during COVID-19 pandemic: Implications for hedging and investments strategies

This study has been inspired by the emergence of socially responsible investment practices in mainstream investment activity as it examines the transmission of return patterns between green bonds, carbon prices, and renewable energy stocks, using daily data spanning from 4th January 2015 to 22nd September 2020. In this study, our dataset comprises the price indices of S&P Green Bond, Solactive Global Solar, Solactive Global Wind, S&P Global Clean Energy and Carbon. We employ the TVP-VAR approach to investigate the return spillovers and connectedness, and various portfolio techniques including minimum variance portfolio, minimum correlation portfolio and the recently developed minimum connectedness portfolio to test portfolio performance. Additionally, a LASSO dynamic connectedness model is used for robustness purposes. The empirical results from the TVP-VAR indicate that the dynamic total connectedness across the assets is heterogeneous over time and economic event dependent. Moreover, our findings suggest that clean energy dominates all other markets and is seen to be the main net transmitter of shocks in the entire network with Green Bonds and Solactive Global Wind, emerging to be the major recipients of shocks in the system. Based on the hedging effectiveness, we show that bivariate and multivariate portfolios significantly reduce the risk of investing in a single asset except for Green Bonds. Finally, the minimum connectedness portfolio reaches the highest Sharpe ratio implying that information concerning the return transmission process is helpful for portfolio creation. The same pattern has been observed during the COVID-19 pandemic period.     

Circular or angular? How nostalgia affects product shape preference

As an important marketing strategy, nostalgia marketing is widely used by enterprises to attract consumers and influence their decision-making. Besides, feelings of nostalgia can be easily elicited in people's daily life and exert a great impact on them. Though the effect of nostalgia on consumer behavior has been extensively studied, whether and how nostalgia affects consumer preference for products with certain visual designs remain underexplored. Our research extends this domain by focusing on product shape preference as a new downstream consequence of nostalgia. Five studies (including one field experiment) demonstrate that nostalgia can increase consumer preference for circular-shaped products, with social connectedness as the underlying driver. Moreover, the indirect effect of nostalgia on circular shape preference via social connectedness is moderated by consumers' current social connections, such that the effect holds true for consumers with a low number of current social connections but is eliminated for those with a high number of current social connections. Together, marketers seeking to increase the sales of circular-shaped products may use nostalgic elements or cues in marketing campaigns.     

高管本地任职与企业价值:基于家乡认同视角

在中国,家乡认同是具有代表性的传统文化,也是一种重要的非正式制度,但目前鲜有文献关注其在公司经营中的作用,本文以2003~2019年中国沪深A股上市公司作为研究样本对高管的家乡认同在企业价值创造中的作用进行实证检验。研究发现,高管本地任职有利于公司价值增长,这主要是由家乡认同驱动的,而非社会资本,并且这种关系在民营企业、有本地大客户的企业、流动性较弱和宗族观念强的地区更加显著。本文直接从家乡认同这一角度揭示了本地高管对公司价值的影响,为这一独特情感在高管决策以及企业经营中的作用提供了实证证据,对上市公司选择高管具有启发意义。     

The extreme risk connectedness of the new financial system: European evidence

The paper empirically analyses the tail risk connectedness between FinTech and the banking sector in the European context over 2015–2022. For this purpose, we use the Tail-Event driven NETworks (TENET) risk model, i.e., we can capture the behaviour of extreme (negative and positive) risk spillover within the financial system. The results highlight how most tail risk spillovers are from banks to FinTech firms. Also, the findings suggest that the spillovers of cross-sector tail risk are more significant in downside (bearish) risk conditions than in upside (bullish) one. We find evidence of an asymmetric effect of extreme risk spillover to the real economy. Finally, we evaluate the monetary policy’s impact on extreme risk. Our findings highlight the importance of closer monitoring risk spillover between FinTech institutions and the European banking system to maintain financial stability.     

Spillover analysis across FinTech,ESG, and renewable energy indices before and during the Russia–Ukraine war: International evidence

This study is epicentral to analyze the impact of the Russia–Ukraine war on the financial markets, specifically focusing on the connectedness and spillover dynamics of FinTech, Environmental, Social, and Governance (ESG), renewable energy, gold, and Morgan Stanley Capital International (MSCI) indices in developed and emerging countries. Data are collected from Thomson Reuters, ranging from May 8, 2020, to May 11, 2022, and a time-varying parameter vector autoregression (TVP-VAR) and the dynamic conditional correlation (DCC) generalized autoregressive conditional heteroskedasticity (GARCH) t-Copula (DCC-GARCH t-Copula) are used to analyze the data. The results show that FinTech, ESG, and MSCI are net transmitters in developed countries, whereas gold and renewable energy are net receivers pre- and during war periods. ESG and MSCI are net transmitters in emerging countries, while FinTech, renewable energy, and gold become net receivers in both periods. The hedging ratio sheds light on the costs and weights of efficient pair investments that might change in the context of each region and under the combined scenario. The study has important implications for merchant bankers, policymakers, investors, hedgers, and risk managers.     

The Eurozone banking sector in the time of COVID-19: Measuring volatility connectedness

This article investigates the volatility connectedness of the Eurozone banking system over the last 15 years (from 2005 to 2020). Applying the Diebold-Yilmaz Connectedness Index model to the daily stock return volatilities of 30 major Eurozone banks, we are able to measure the risk spillover effects and to capture the COVID-19 outbreak's impact on banking stability. The empirical findings show that the 30 banks are highly interconnected. Furthermore, we show the strong impact of the COVID-19 pandemic on the volatility dynamics, i.e., on the structure of the Eurozone banking system. Dynamically, we find that volatility connectedness increases during crises, reaching its maximum peak at the time of COVID-19. The analysis points out the critical role of volatility transmission played by large banks, highlighting the “too-big-to-fail” characteristic of this banking system. However, we find that small-medium banks are important actors of contagion, supporting the thesis that the Eurozone banking system is also “too-interconnected to fail.” Finally, we document the heterogeneity effect of the COVID-19 pandemic between Eurozone banking systems. This heterogeneity impact could be a future source of financial instability within the Eurozone.     

Time-varying connectedness of metropolitan housing markets

We construct a time-varying measure of connectedness for 382 U.S. metropolitan housing markets using monthly house price data from 1975 to the present. Housing connectedness in the long run is found to be much stronger than the instantaneous connectedness, both of which exhibit notable variation over time and across metropolitan areas. Unlike stock market connectedness, housing market connectedness leads the business cycle; it helps predict the likelihood of future recessions.