Assessment of statistical power in contemporary strategy research

The concept of statistical power was reviewed, and the power of 44 recently published empirical studies in strategic management was analyzed. Using small, medium, and large estimates of effect size, standardized 0.05 α, and assuming nondirectional nulls, the mean power figures were 0.23, 0.59, and 0.83 for the three levels, respectively. These results were generally similar to findings in other social sciences and were considered particularly important for strategic management research, given the correlational nature of many strategic management investigations and the complexity and evolving stage of the field which make small effect size more likely. Ways to improve statistical power in strategic management research were discussed.     

History,Space and Nature: Building Theory from the Exception

Uneven Development endeavours to derive a theory of uneven geographical development by putting in motion a ‘historical dialogue’ between Marx's critical theorisation of capitalism and the geograhical reality of capitalism at the close of the twentieth century, and by theorising the relations between material nature and the spatial dynamics of capitalist accumulation. The result, however, is a theory of uneven development predicated on a logical rather than a historical conception of capitalism, which furthermore supersedes the question of the production of nature in conceptualising the spatial dynamics of (contemporary) capitalism. This article argues for a re-theorisation of uneven geographical development that considers the production of nature, namely extractive industry, as a point of departure in theorising the spatial dynamics of contemporary capitalist accumulation, focusing briefly on the concentration and centralisation of capital.     

Put-call parity revisited: intradaily tests in the foreign currency options market

We test exchange-traded (PHLX) German mark options for conformance to put-call parity (PCP). Puts and calls are matched to the nearest minute, and the relative impact of competing spot exchange rate sources (Reuters vs. Telerate) is assessed. We find that PCP usually holds (roughly 96% of put-call pairs), with the exception of a notable incident in the European options pits. In those instances in which PCP is violated, we find sharp intradaily and intraweekly seasonalities for American options, with disproportionate PCP violations occurring during the relatively light trading periods in early evening and on Fridays. We also conclude that the Telerate prices as recorded by the PHLX are not as accurate as the Reuters exchange rates provided by Olsen and Associates, probably because of time lags in the Telerate data.     

Currency Substitution and Price Endings: Right Digit Effect

ABSTRACT

The strategic manipulation of prices. rightmost digits has been a tactic used by retailers in the western world for decades. By studying the internationalization of pricing tactics in a global economy, our research adds a much needed contribution to the literature of price endings and pricing tactics in global markets. We find that at lower price levels, consumers exposed to a 99 ending price in a currency substitution market are more likely to purchase the product compared to consumers in the US market. At higher price levels, on the other hand, consumers in either market situation exhibit no change in purchase intentions. Thus, the 99 ending tactic has no effect on consumers when the product is expensive. The use of the right digit effect by managers in a currency substitution/ dollarized economy as a way of persuading consumers to buy is still likely to be more successful compared to the USA market. As such, firms in a dollarized economy should structure their pricing strategies while taking into consideration the type of product they are offering and the consumer market they are dealing with.     

How competitive is the Syrian banking sector? Empirical evidence from ‘pre/post’ war Syria

This paper investigates the degree of market power in the Syrian banking sector over the period 2005–2016 where research on competitive conditions does not exist. The degree of competitiveness is assessed based on the revenue elasticity to input prices approach and is related to a set of market indicators. To test whether the Syrian crisis has altered the competitive conditions over the years of the sample, I divide the full sample into two subsamples, namely the pre-crisis years (2005–2012) and the crisis years (2013–2016). The results suggest that banks in Syria earn their interest and total revenue under conditions of monopoly. I find that the trend of market structure—characterized by a monopoly—in the pre-crisis years continues over crisis years. My findings provide robust evidence that a collusive behaviour among banks is in operation in the banking sector of Syria. The difficult penetration into/exit from the market has led to the existence of a profit-curb mechanism for the Syrian banks, hence, an upward shift in the marginal cost curve will be associated with a reduction in revenue as a result of the optimal condition for these banks which act as monopolists.