Do information technology (IT) investments improve firm profitability? If so, is this effect because such investments help improve sales, or is it because they help reduce overall operating expenses? How does the effect of IT on profitability compare with that of advertising and research and...

Comparing groups with respect to hypothetical constructs requires that the measurement models are equal across groups. Otherwise conclusions drawn from the observed indicators regarding differences at the latent level (mean differences, differences in the structural relations) might be severly...

A key to enhancing sales force productivity is finding ways to help existing reps sell more. In this paper, we focus on the process of internal efficiency benchmarking of a firm's sales representatives aimed at identifying strong and weak performers and providing meaningful and actionable...

This article presents a state-space representation known as parameters as states (PASTA) for linear market response models with time-varying parameters. The PASTA representation enables (a) conversion of the problem of estimating the time-varying effectiveness of marketing interventions from a...

This paper revisits the effects of income changes on consumption of private households by focusing on a commonly disregarded and yet sizeable component of household expenditures: consumption of food and non-food consumer packaged goods. We exploit a new data source from the Netherlands that...

Although the maintenance of price stability and the attainment of full employment are important macroeconomics goals in any economy, Nigeria still contends with problems of high inflation and unemployment. This study examines the Phillips curve hypothesis (inflation and unemployment trade-off)...