Information Technology As A Factor Of Production: The Role Of Differences Among Firms

Despite evidence that information technology (IT) has recently become a productive investment for a large cross-section of firms, a number of questions remain. Some of these issues can be addressed by extending the basic production function approach that was applied in earlier work. Specifically, in this short paper we: 1) control for individual firm differences in productivity by employing a ‘firm effects’ specification, 2) consider the more flexible translog specification instead of only the Cobb-Douglas specification, and 3) allow all parameters to vary between various subsectors of the economy.

We find that while ‘firm effects’ may account for as much as half of the productivity benefits imputed to IT in earlier studies, the elasticity of IT remains positive and statistically significant. We also find that the estimates of IT elasticity and marginal product are little-changed when the less restrictive translog production function is employed. Finally, we find only limited evidence of differences in IT's marginal product between manufacturing and services and between the ‘measurable’ and ‘unmeasurable’ sectors of the economy. Surprisingly, we find that the marginal product of IT is at least as high in firms that did not grow during 1988–1992 sample period as it is in firms that grew.     

Standardized Multinational Advertising: The Influencing Factors

Abstract

Advertising for multinational products uses standardization most often in strategy, less often in executions, and least often in language. This study's international sample of advertising agency executives considers creative impact the most important and pressure (from time, client, etc.) the least important reason to use some form of standardized advertising. Despite this, it is views on client pressure which explain most of the variance in views on future use of standardization. That is, those respondents who believe that client pressure is increasing also believe that overall use of standardization will increase. A separate sample of agency executives reinforced some of these findings, particularly the role of the successful, big idea and client pressure in making the decision to standardize. Copy research also plays a role in standardization recommendations, but it is not used as extensively as might be necessary.     

Do Antitrust Laws Facilitate Collusion? Experimental Evidence on Costly Communication in Duopolies*

Bertrand supergames with non‐binding communication are used to study price formation and stability of collusive agreements on experimental duopoly markets. The experimental design consists of three treatments with different costs of communication: zero‐cost, low‐cost and high‐cost. Prices are found to be significantly higher when communication is costly. Moreover, costly communication decreases the number of messages, but more importantly, it enhances the stability of collusive agreements. McCutcheon (1997) presents an interesting application to antitrust policy by letting the cost of communication symbolize the presence of an antitrust law that prohibits firms from discussing prices. Although our experimental results do not support the mechanism of McCutcheon's (1997) argument, the findings point in the direction of her prediction that antitrust laws might work in the interest of firms.     

利用生产停顿机会进行维修以提高产量

介绍Statoil公司提出的机会维修概念和它对生产所起的重要作用,举例说明机会维修的可行性,并对机会维修进行优化使它更好地为生产服务.     

EXPRESS LANE OR TOLLBOOTH IN THE DESERT? THE SEC'S FRAMEWORK FOR SECURITY ISSUANCE

U.S. companies that need capital may choose between selling securities in the private and public markets. These venues differ in terms of direct issuance costs, the required information disclosed, the liability incurred, and the mechanics of the capital-raising process itself. During the last two decades, the Securities and Exchange Commission (SEC) has deregulated private offerings by broadening their investor base and increasing secondary market liquidity. At the same time, SEC policy has bifurcated the offering process in the public market into two distinct segments based largely on company size and seasoning. Large public issuers have seen a gradual deregulation and acceleration of their capitalraising processes. Important changes for issuers include allowing them to incorporate information into registration statements by reference to Exchange Act reports, to use shelf registration to speed up offers, and to place securities offshore with less regulatory uncertainty. Though small issuers enjoy some of the benefits of these changes, deregulation of their offerings has been somewhat less pronounced. In a Commission report and a subsequent concept release, the SEC indicates it may restructure and unify these three disparate strands of capital raising through an innovative schema of registering companies rather than securities.     

The constant preferences assumption as a specification error in demand analysis

Complete demand systems often are estimated under the assumption that preferences are constant. If preferences do change in reality, this leads to a specification error. This note explores some of the implications of such a specification error.     

SHORT‐MATURITY OPTIONS AND JUMP MEMORY

We investigate jump memory using an extensive database of short‐term S&P 500 index options. Jump memory refers to the attenuation of the implied jump intensity and magnitude parameters following a crash event. We use a genetic algorithm to obtain a time series of implied parameter estimates and posit behavioral and rational explanations for parameter attenuation following a crash event. We find that a nested form of the jump‐diffusion model sharpens the remaining parameter estimates and has a negligible effect on pricing accuracy.