Do Bubbles Have Real Effects? Balance Sheet Analysis and Review of Literature

Joseph Emmanuel Fantcho and Patrick Konin N'gouan

International Journal of Economics and Finance, 2024, vol. 16, issue 9, 41

Abstract: This paper studies the nature and the existence of bubbles in financial markets. Do bubbles have real effects? How do they behave? From balance sheet, we learn that the impacts of bubbles depend on who owns the bubbles assets. The effects of speculative bubbles are intensified when it is banks that hold financial assets. Banks’ balance sheets are improving following the expansion of a bubble that sharply increases asset prices, earnings and equity. The increase in equity rises the capacity of banks to grant credit to the economy, to stimulate economic growth, investments and production. Balance sheet crises, in which asset prices collapse, pose particular economic challenges. Banks’ equity fall abruptly, Banks may not be able to grant as much credit to the economy as in the past. Economic activity is contracted, there will be a reduction in investment and production. A financial crisis can then cause an economic crisis. The total assets of banks can change greatly, depending on whether we are in periods of spectacular increases in asset prices or in periods of drastic fall in assets prices. We use econometric methods to determine the specific effects to each bank, and we note that in presence of speculative bubbles, the total assets held by the largest banks increases on average by about US $360.5 billion. In contrast, during periods of drastic declines in asset prices, the total assets held by the world’s largest banks decreases by about US $291.3 billion. Thus, over time, after a business cycle (recovery, recession, recovery), the total assets of the world’s largest banks increase by an average of US $90 billion.

Date: 2024
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