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Purpose - The paper investigates whether Granger causal relationships exist between bond market development, stock market development, economic growth and two other macroeconomic variables, namely, inflation rate and real interest rate. The study aims to expand the domain of economic growth by including a more in-depth analysis of the possible impact that bond market and stock market development has on economic growth than is normally found in the literature. Design/methodology/approach - This paper uses a panel data set of the G-20 countries for the period 1991-2016. It uses a panel vector auto-regression model to reveal the nature of any Granger causality among the five variables. Findings - The paper provides empirical insights that both bond market development and stock market development are cointegrated with economic growth, inflation rate and real interest rate. The most robust result from the panel Granger causality test is that bond market development, stock market development, inflation rate and real interest rate are demonstrable drivers of economic growth in the long run. Research limitations/implications - Because of the chosen research approach, the research results may lack theoretical foundations. Therefore, perhaps the more fully grounded interactive findings of this study can inspire theorists to fill the missing gap. Practical implications - This paper includes lessons for policymakers in the G-20 countries seeking to stimulate economic growth in the long run and how they need to ensure greater stability of the interest rate and inflation rate as well as fully developing their financial markets, as both bond markets and stock markets are obvious drivers of economic growth. Originality/value - This paper fulfills an identified need to study causal relationships between bond market development, stock market development, economic growth and two other macroeconomic variables, i.e. inflation rate and real interest rate.

This paper investigated the linkages between banking sector depth, trade openness, and economic growth using a panel data set covering the ASEAN regional forum countries for the period 1961â2012. Using our multivariate framework, we first found that all the variables were integrated of order one and were cointegrated. Our panel-data estimation procedures offered more robust estimates than previous studies by utilizing variations between countries as well as variations over time. The results of this study indicated a general long-run equilibrium relationship among trade openness, banking sector depth and economic growth as well as a short-run relationship between these variables. Policy recommendations include those that will promote greater banking sector development as well as increased trade openness. JEL classification: O16, O43, E44, E31, Keywords: Trade openness, Banking sector depth, Economic growth, Granger causality, ASEAN regional forum countries

Nanostructured surfaces enhance ion yields in matrix-assisted laser desorption-ionization mass spectrometry (MALDI-MS). The spike protein complex, S1, is one fingerprint signature of Sars-CoV-2 with a mass of 75 kDa. Here, we show that MALDI-MS yields of Sars-CoV-2 spike protein ions in the 100 kDa range are enhanced 50-fold when the matrix-analyte solution is placed on substrates that are coated with a dense forest of multi-walled carbon nanotubes, compared to yields from uncoated substrates. Nanostructured substrates can support the development of mass spectrometry techniques for sensitive pathogen detection and environmental monitoring.

Research Highlights • An assessment of institutional quality, innovation, and economic growth in developing countries. • Long-run causality from innovation and institutional quality to economic growth is present. • Short-run directions of causality are varied among variables of interest. • Innovation and institutional quality generally positively impact economic growth. Continuous innovation is the lifeblood of a competitive economy. Furthermore, and arguably, the existence of institutions of governance of quality can be a catalyst for emerging economies to transition up the universal innovation value chain. In this context, we investigate temporal causal interactions among institutional quality, innovation, and economic growth for developing countries (DCs) spanning the period of 2005–2020. Employing a vector error-correction model (VECM), we find that for each case and specification (49 instances), there is evidence of the long-run causality from institutional quality and innovation to economic growth. Stated another way, in the long run, institutional quality and innovation Granger-cause economic growth. However, the short-run causality results differ depending on the specific measures of innovation and institutional quality. The strongest short-run conclusion is support for the feedback hypothesis for economic growth and innovation where there is a strong endogenous relationship between innovation, institutional governance, and economic growth. The empirical analysis shows over 70% of our observations support that economic growth and innovation jointly determine each other in the short run. The results suggest that DCs should develop and pursue long-term growth strategies that simultaneously develop innovation and improve institutional governance. [ABSTRACT FROM AUTHOR]

This study examines key factors in the economic growth of middle-income countries over the period 1970–2017. The variables considered are ICT infrastructure development, taxation revenue, government expenditure, gross capital formation, foreign direct investment, and inflation. This study considers interlinkages between the macroeconomic variables noted above. The purpose of this study is to determine: (1) if there is causality between the variables and (2) the direction of any causality. Using a panel vector error-correction model, we find both short-run and long-run relationships between the variables. In each specification, we find that ICT infrastructure development, taxation revenue and the four macroeconomic variables all stimulate economic growth in the long run. This suggests that policymakers should curate an integrated and holistic policy framework pertaining to taxation, ICT infrastructure development and other macroeconomic policies to create a vibrant national economic ecosystem that would ensure the sustained economic growth of middle-income countries. [ABSTRACT FROM AUTHOR]