scholarly journals Information, market power, and price volatility

2021 ◽  
Vol 52 (1) ◽  
pp. 125-150
Author(s):  
Dirk Bergemann ◽  
Tibor Heumann ◽  
Stephen Morris
Author(s):  
Dirk Bergemann ◽  
Tibor Heumann ◽  
Stephen Edward Morris

2010 ◽  
Vol 70 (3) ◽  
pp. 630-656 ◽  
Author(s):  
Caroline Fohlin

Investors in new stock issues in Germany in the 1880s experienced low spreads between the price they paid for stock and the price at which they could sell the stock in the market. Stock issuing companies paid substantial fees to underwriting banks, and these costs increased with the underwriter's market share. Bank's faced lower issuing costs than did nonfinancial firms. These patterns are consistent with a situation in which underwriters exploited their access to better information (agency problems) and had market power, but do not support the supposed lemons problems that motivated the imposition of stringent regulations in 1896.


2019 ◽  
Vol 9 (3) ◽  
pp. 255-275 ◽  
Author(s):  
Pratap Birthal ◽  
Akanksha Negi ◽  
P.K. Joshi

Purpose Post-2008 global food crisis the prices of perishable high-value food commodities, such as vegetables and fruits, in India have risen faster and become more volatile compared to that of cereals. The welfare consequences of price shocks though are well understood yet the policy responses to manage these remain blurred because of a lack of clarity on their causes. Focusing on onions that comprise an important constituent of the Indian diet, the purpose of this paper is to explore causes of high price volatility. Design/methodology/approach Using high-frequency time series data on wholesale prices and arrivals of onions in major markets and other relevant variables, this paper analyzes causes of price volatility from several angles, that is production shocks, seasonality in production and market arrivals, internal trade, export policies and market power of intermediaries on the supply chain. Findings Despite markets being integrated and no significant climatic shocks to production there exists a strong element of uncertainty in market arrivals of onions, pointing toward the market power immediate downstream the production or alternatively anti-competition trade practices in major markets as a cause of high price volatility. The measures to manage price volatility, such as an increase in minimum export prices and bans on exports, are also not found to have an immediate cooling effect on prices. Research limitations/implications The agricultural policy should provide for a system of market intelligence to monitor anti-competitive trade practices along the supply chain, and to take proactive trade control measures to prevent frequent ups and downs in domestic prices. In addition, it should provide for incentives for developing efficient supply chains and for the cultivation of onions in the regions that have agronomic potential but it has remained underexploited due to one or the other constraint. Social implications Excessive volatility in food prices impacts farmers, consumers, processors, and traders and even political system. It may distort production and investment decisions of farmers and intermediaries on the value chains, leading to inefficient allocation of resources. The poor consumers may be forced to reduce food and non-food productive expenditures. If persists for a longer period, it may lead to political instability too. Originality/value Several studies have analyzed volatility in food prices and causes thereof. However, rarely any of these has examined volatility in prices of perishable high-value food commodities. This paper is an attempt toward filling this gap.


Ekonomika ◽  
2017 ◽  
Vol 95 (3) ◽  
pp. 37-51
Author(s):  
Aras Zirgulis ◽  
Liutauras Petručionis ◽  
Maik Huettinger

The present study investigates the degree to which imperfect competition in the oil sector affects end retail prices. Specifically, we test how positive and negative price shocks in the oil market translate to final retail prices for petrol, diesel, and heating oil prices, focusing on the asymmetry of the price changes. We assume that the higher the level of imperfect competition, the more asymmetric the price change between the initial oil and final retail products will be. In addition, we also test the degree to which uncertainty, or oil price volatility, affects the final prices for these same products. We find that our proxy for market power does affect retail price asymmetries and that increasing volatility lowers retail price asymmetries.


Author(s):  
Thomas Plieger ◽  
Thomas Grünhage ◽  
Éilish Duke ◽  
Martin Reuter

Abstract. Gender and personality traits influence risk proneness in the context of financial decisions. However, most studies on this topic have relied on either self-report data or on artificial measures of financial risk-taking behavior. Our study aimed to identify relevant trading behaviors and personal characteristics related to trading success. N = 108 Caucasians took part in a three-week stock market simulation paradigm, in which they traded shares of eight fictional companies that differed in issue price, volatility, and outcome. Participants also completed questionnaires measuring personality, risk-taking behavior, and life stress. Our model showed that being male and scoring high on self-directedness led to more risky financial behavior, which in turn positively predicted success in the stock market simulation. The total model explained 39% of the variance in trading success, indicating a role for other factors in influencing trading behavior. Future studies should try to enrich our model to get a more accurate impression of the associations between individual characteristics and financially successful behavior in context of stock trading.


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