Causality and Cosmic Inflation

Investigating the Relationship between Money Growth and Inflation in Turkey: A Nonlinear Causality Approach

Theories on the relationship between money and inflation had largely been shaped around the positive relationship and money causality for inflation before the Post-Keynesians. Since the 1980s, this idea emerged that there might be no correlation between money growth and inflation. In the case of existence, the causality is reversed, so money is endogenous somehow. However, practically there is ...

Core Inflation and Economic Growth, Does Nonlinearity Matters? A Nonlinear Granger Causality Analysis

T his empirical analysis endeavors to trace out the causal nexus between core inflation and economic growth from the perspective of twenty worlds’ leading economy with the help of the nonlinear Granger causality approach by using time series data from 1981 to 2016. Based on nonlinear Granger causality results, it has been found that there is unidirectional casualty running from core ...

Causality and Primordial Tensor Modes

We introduce the real space correlation function of B-mode polarization of the cosmic microwave background (CMB) as a probe of superhorizon tensor perturbations created by inflation. By causality, any non-inflationary mechanism for gravitational wave production after reheating, like global phase transitions or cosmic strings, must have vanishing correlations for angular separations greater than...

Inflation and Money supply growth in Iran: Empirical Evidences from Cointegration and Causality

Inside inflation: after the big bang

There is little direct evidence that inflation actually took place. Observations of the cosmic microwave background "fossil" radiation from the big bang are consistent with the idea that inflation took place, but that doesn't mean it actually happened. What's more, we still don't know what would have caused it if it did. So how confident can we be that inflation is really a part of the universe...