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Kian Tehranian

Publications and source records attributed to Kian Tehranian.

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Can Machine Learning Catch Economic Recessions Using Economic and Market Sentiments?

Quantitative models are an important decision-making factor for policy makers and investors. Predicting an economic recession with high accuracy and reliability would be very beneficial for the society. This paper assesses machine learning technics to predict economic recessions in United States using market sentiment and economic indicators (seventy-five explanatory variables) from Jan 1986 - June 2022 on a monthly basis frequency. In order to solve the issue of missing time-series data points, Autoregressive Integrated Moving Average (ARIMA) method used to backcast explanatory variables. Analysis started with reduction in high dimensional dataset to only most important characters using Boruta algorithm, correlation matrix and solving multicollinearity issue. Afterwards, built various cross-validated models, both probability regression methods and machine learning technics, to predict recession binary outcome. The methods considered are Probit, Logit, Elastic Net, Random Forest, Gradient Boosting, and Neural Network. Lastly, discussed different models performance based on confusion matrix, accuracy and F1 score with potential reasons for their weakness and robustness.

econ.EM

Monetary Policy & Stock Market

This paper assesses the link between central bank's policy rate, inflation rate and output gap through Taylor rule equation in both United States and United Kingdom from 1990 to 2020. Also, it analyses the relationship between monetary policy and asset price volatility using an augmented Taylor rule. According to the literature, there has been a discussion about the utility of using asset prices to evaluate central bank monetary policy decisions. First, I derive the equation coefficients and examine the stability of the relationship over the shocking period. Test the model with actual data to see its robustness. I add asset price to the equation in the next step, and then test the relationship by Normality, Newey-West, and GMM estimator tests. Lastly, I conduct comparison between USA and UK results to find out which country's policy decisions can be explained better through Taylor rule.

econ.GN