While the role of exports in promoting growth in general, and productivity in particular, has been investigated empirically using aggregate data for countries and industries for a long time, only recently have comprehensive longitudinal data at the firm level been used to look at the extent and causes of productivity differentials between exporters and their counterparts which sell on the domes...

For the last several years, a number of researchers have been interested in the various problems which arise when modelling aggregate-type data [1st SDBM], [2nd SDBM], [3rd SSDBM], [Rafanelli 89]. Since aggregate data is often derived by applying statistical aggregation (e.g. SUM, COUNT) and statistical analysis functions over micro-data [Wong 84] the aggregate data bases are also called "stati...

This paper constructs a unique cohort data set to study the changes since 1960 in the share of Americans' resources that are annuitized. Understanding these changes is important because the larger this share, the more cohorts are likely to consume and the less they are likely to bequeath. Hence, the degree of annuitization affects national saving as well as the transmission of inequality over t...

We use individual and aggregate data to ask how the Internet is changing the ideological segregation of the American electorate. Focusing on online news consumption, offline news consumption, and face-to-face social interactions, we define ideological segregation in each domain using standard indices from the literatureonracial segregation. Wefindthat ideological segregationofonlinenews consump...

Marketers have been interested in diffusion of new products since Bass (1969). One of the main objectives inherent in diffusion studies is to explain the sales pattern of new products over time. Many factors can influence sales patterns including firm’s marketing strategies, consumer characteristics in the market, consumer expectations of utility from the products, value of the product in conju...

Models of movie theatre demand have tended to employ aggregate data and focus on price and income as key variables. Surprisingly, the effect of travel time and multiplexes has not, hitherto, been formally investigated. This study does so using national survey data. Following developments in the environmental economics literature, we present estimates of individual travel cost models for multipl...

s of the 3 MC-GARD Meeting, 1-5 April 2009: Friday 3 April 96 discuss the aggregate data, which in sum moves toward defining the molecular architecture of a complex we refer to as the insulatosome.

This paper discusses the use of semantic technologies to increase quality, machine-processability, format translatability and crossquerying of complex tabular datasets. Our interest is to enable longitudinal studies of social processes in the past, and we use the historical Dutch censuses as case-study. Census data is notoriously difficult to compare, aggregate and query in a uniform fashion. W...