Connectedness of COVID vaccination with economic policy uncertainty, oil, bonds, and sectoral equity markets: evidence from the US.

We examine the connectedness of the COVID vaccination with the economic policy uncertainty, oil, bonds, and sectoral equity markets in the US within time and frequency domain. The wavelet-based findings show the positive impact of COVID vaccination on the oil and sector indices over various frequency scales and periods. The vaccination is evidenced to lead the oil and sectoral equity markets. More specifically, we document strong connectedness of vaccinations with communication services, financials, health care, industrials, information technology (IT) and real estate equity sectors. However, weak interactions exist within the vaccination-IT-services and vaccination-utilities pairs. Moreover, the effect of vaccination on the Treasury bond index is negative, whereas the economic policy uncertainty shows an interchanging lead and lag relation with vaccination. It is further observed that the interrelation between vaccination and the corporate bond index is insignificant. Overall, the impact of vaccination on the sectoral equity markets and economic policy uncertainty is higher than on oil and corporate bond prices. The study offers several important implications for investors, government regulators, and policymakers.

Fresh evidence on connectedness between prominent markets during COVID-19 pandemic.

Various empirical studies have examined the nexus between financial markets, but this study focused on the comovement among prominent markets. Our study examines the interrelationship among main financial markets, i.e., stock, oil, and commodity during the recent pandemic. The interconnections among the selected markets are investigated using a battery of wavelet coherence tools and the Granger causality test. From the wavelet coherence analysis, our findings indicate strong co-movements among the VIX, oil volatility, and commodity prices during pandemic and localized in all scales and over the sample period. The dependency strength among the considered economies is noted to increase in pandemic, which implies increased short- and long-term benefits for the investors. Moreover, Our result exhibits a feedback causality between OVIX and crude oil, VIX and S&P 500, and gasoline and VIX. Interestingly, a unidirectional causality exists between VIX and crude oil, S&P 500 and crude oil, Brent and crude oil, gasoline, crude oil, and VIX and OVIX. We advocate that the findings will be helpful for portfolio managers, investors, and officials around the world.

Impact of Covid-19 outbreak on psychological health-The case of Bangladesh.

BACKGROUND: The outbreak of COVID-19, a profoundly contagious disease has unnerved the world in a calamitous manner from diverse aspects. The present study ventures to expand the literature by exploring loneliness, social isolation, risk perception, financial distress, and psychological distress amidst the lockdown phase of the general population of Bangladesh. METHODS: Through an online survey among 474 respondents (between April 17th and April 23rd, 2020), data were collected from the Bangladeshi residents (21 years or above). Descriptive and inferential statistical analyses were conducted using IBM Statistical Package for Social Science (SPSS) and Warp-PLS. RESULTS: Findings suggest a strong positive correlation among the factors and social isolation, risk perception, financial distress are manifested as the predictors of psychological distress. Besides, females, aged people, and lower-income group are found to be more psychologically distressed. CONCLUSION: This study yields new insights into the psychological facets of a lower-middle-income earning country, Bangladesh.

Medial Sural Artery Perforator Flap for Head and Neck Reconstruction.

AIM: The aim is to study the assessment of feasibility of medial sural artery perforator (MSAP) free flap for head and neck reconstruction at our center. MATERIALS AND METHODS: Oral cancer patients with squamous cell carcinoma of the tongue, buccal mucosa, and floor of mouth cancer attending our center were reconstructed using MSAP flap after oncologic resection. Handheld 8 MHz Doppler was used to identify the perforator preoperatively. RESULTS: We reconstructed 10 patients using MSAP flap. The flap was designed according to defect and donor site was primarily closed in all cases. Excellent results were seen in nine patients reconstructed with MSAP flap without any postoperative complication. Flap failure occurred in one patient due to venous thrombosis. The thickness of flap ranged from 4 to 8 mm. The vascular pedicle length ranged from 9 to 13 cm. CONCLUSION: The MSAP flap is appropriate for medium-sized oral defect reconstruction, with a long pedicle of matching caliber, adequate tissue volume, and minimal donor-site morbidity which makes it comparable to other microvascular free flaps such as radial artery free flap (RAFF) and anterolateral thigh flap.