Sherry BARTZ - Academia.edu (original) (raw)
Papers by Sherry BARTZ
2019 International Conference on Data Mining Workshops (ICDMW), 2019
Measuring the efficiency of complex and dynamic organizational processes is a problem that remain... more Measuring the efficiency of complex and dynamic organizational processes is a problem that remains unresolved in the management science literature. We propose a novel sequence transverse velocity measurement of the sequential decision processes from the itemset transition speed of frequent subsequences. Specifically, sequential decision chains of different source sequences under comparison are modeled as time-stamped itemset sequences and their frequent subsequences are extracted using sequential pattern discovery algorithm. The subsequence transverse velocity is represented as the inverse ranking of the traversing time duration of a common subsequence among the source sequences that share this subsequence. The proposed velocity measurement is then combined into a velocity timeline accompanying each source sequence by weighting the velocity of the constituent subsequences according to the statistical and contextual significance of the subsequences. To demonstrate the usage of this velocity measurement and its related computational tools, the paper also includes two empirical studies: one based on real-world business expansion chains and the other based on healthcare delivery systems.
SSRN Electronic Journal, 2018
Research that examines beachhead choice and speed of expansion in the context of a regional entry... more Research that examines beachhead choice and speed of expansion in the context of a regional entry strategy is absent in international business literature. To address this gap, we developed a three-part model of country-by-country expansion and applied it to a uniquely compiled dataset of foreign firms that entered various Latin American countries between 1990 and 2005. We found that a firm’s regional speed and performance in Latin America were sensitive to its beachhead choice and its sequential expansion path. The implication is that managers should weigh the regional knowledge a country provides when selecting a beachhead for regional expansion.
This body of work contributes to the literature on two current topics in environmental economics:... more This body of work contributes to the literature on two current topics in environmental economics: (1) the relationship between economic development and environmental degradation; and (2) the effectiveness of mandatory information disclosure as a regulatory instrument. For the first topic, we link theoretical and empirical Environmental Kuznets Curve research by using calibration and simulation to test a growth model with environmental quality as a normal good and emissions as a factor of production. We use U.S. macroeconomic, emissions and compliance data to calibrate parameters representing preferences for environmental quality and marginal abatement costs. We simulate the model starting from a less-developed initial condition and compare the predicted pollution-income relationship with that in the data. Our results are mixed. Some support exists for the theory that an inverted U-shape results from a corner solution in which less developed countries do not abate pollution. However,...
The Antitrust Bulletin, 2013
A major global policy development in the last few decades has been the adoption of national antit... more A major global policy development in the last few decades has been the adoption of national antitrust laws by many developing and transition countries. A primarily American creation, antitrust laws have now spread to nearly all corners of the world. This study undertakes a political economy approach to understanding the global adoption of antitrust laws. We focus on the causal connection between a democratic form of capitalism and antitrust adoption. We argue that the interaction of democracy with a pure form of capitalism results in a political economy characterized as “democratic capitalism.” On the basis of this understanding, we then develop a theoretically grounded conceptual model and offer multiple testable propositions. Our findings show that democratic capitalism, and not capitalism in its pure form, was instrumental in countries adopting national antitrust laws. We attribute this finding to the greater “transactional congruity” that exists between democratic capitalism and...
Marketing Letters, 2013
ABSTRACT This paper investigates how the announcement of negative information about a celebrity e... more ABSTRACT This paper investigates how the announcement of negative information about a celebrity endorser impacts firm value, as measured by abnormal stock returns. The unique data sample consists of 93 celebrity disgraces that occurred between 1986 and 2011, affecting firms listed on US stock exchanges. Some evidence is documented of negative and statistically significant abnormal returns around these events. Returns tend to be lower when the disgrace attracts much media attention, or when the celebrity itself is prominent. No significant returns are observed when a firm decides to terminate its endorsement contract with the disgraced celebrity. Congruent relationships between endorser and brand are less likely to be terminated, as well as endorsement contracts with prominent celebrities. The announcement day return itself appears to play no role in the firm’s decision whether to terminate or not.
Resource and Energy Economics, 2008
Several recent papers propose competing theoretical explanations for the empirical observation of... more Several recent papers propose competing theoretical explanations for the empirical observation of an inverted U-shape relationship between enviromental degradation and per-capita income. We proprose the following test of the theory: calibrate a theoretical model to an already developed economy using information unrelated to the pollution-income curve. Then simulate the model starting from a less developed initial condition and compare the predicted pollutionincome relationship with that in the data. Our results are mixed. Some support exists for the theory that the inverted U-shape results from a corner solution in which less developed countries do not abate pollution. However, pollution peaks at a level of per capita income that is much lower than that observed in the U.S. data.
2019 International Conference on Data Mining Workshops (ICDMW), 2019
Measuring the efficiency of complex and dynamic organizational processes is a problem that remain... more Measuring the efficiency of complex and dynamic organizational processes is a problem that remains unresolved in the management science literature. We propose a novel sequence transverse velocity measurement of the sequential decision processes from the itemset transition speed of frequent subsequences. Specifically, sequential decision chains of different source sequences under comparison are modeled as time-stamped itemset sequences and their frequent subsequences are extracted using sequential pattern discovery algorithm. The subsequence transverse velocity is represented as the inverse ranking of the traversing time duration of a common subsequence among the source sequences that share this subsequence. The proposed velocity measurement is then combined into a velocity timeline accompanying each source sequence by weighting the velocity of the constituent subsequences according to the statistical and contextual significance of the subsequences. To demonstrate the usage of this velocity measurement and its related computational tools, the paper also includes two empirical studies: one based on real-world business expansion chains and the other based on healthcare delivery systems.
SSRN Electronic Journal, 2018
Research that examines beachhead choice and speed of expansion in the context of a regional entry... more Research that examines beachhead choice and speed of expansion in the context of a regional entry strategy is absent in international business literature. To address this gap, we developed a three-part model of country-by-country expansion and applied it to a uniquely compiled dataset of foreign firms that entered various Latin American countries between 1990 and 2005. We found that a firm’s regional speed and performance in Latin America were sensitive to its beachhead choice and its sequential expansion path. The implication is that managers should weigh the regional knowledge a country provides when selecting a beachhead for regional expansion.
This body of work contributes to the literature on two current topics in environmental economics:... more This body of work contributes to the literature on two current topics in environmental economics: (1) the relationship between economic development and environmental degradation; and (2) the effectiveness of mandatory information disclosure as a regulatory instrument. For the first topic, we link theoretical and empirical Environmental Kuznets Curve research by using calibration and simulation to test a growth model with environmental quality as a normal good and emissions as a factor of production. We use U.S. macroeconomic, emissions and compliance data to calibrate parameters representing preferences for environmental quality and marginal abatement costs. We simulate the model starting from a less-developed initial condition and compare the predicted pollution-income relationship with that in the data. Our results are mixed. Some support exists for the theory that an inverted U-shape results from a corner solution in which less developed countries do not abate pollution. However,...
The Antitrust Bulletin, 2013
A major global policy development in the last few decades has been the adoption of national antit... more A major global policy development in the last few decades has been the adoption of national antitrust laws by many developing and transition countries. A primarily American creation, antitrust laws have now spread to nearly all corners of the world. This study undertakes a political economy approach to understanding the global adoption of antitrust laws. We focus on the causal connection between a democratic form of capitalism and antitrust adoption. We argue that the interaction of democracy with a pure form of capitalism results in a political economy characterized as “democratic capitalism.” On the basis of this understanding, we then develop a theoretically grounded conceptual model and offer multiple testable propositions. Our findings show that democratic capitalism, and not capitalism in its pure form, was instrumental in countries adopting national antitrust laws. We attribute this finding to the greater “transactional congruity” that exists between democratic capitalism and...
Marketing Letters, 2013
ABSTRACT This paper investigates how the announcement of negative information about a celebrity e... more ABSTRACT This paper investigates how the announcement of negative information about a celebrity endorser impacts firm value, as measured by abnormal stock returns. The unique data sample consists of 93 celebrity disgraces that occurred between 1986 and 2011, affecting firms listed on US stock exchanges. Some evidence is documented of negative and statistically significant abnormal returns around these events. Returns tend to be lower when the disgrace attracts much media attention, or when the celebrity itself is prominent. No significant returns are observed when a firm decides to terminate its endorsement contract with the disgraced celebrity. Congruent relationships between endorser and brand are less likely to be terminated, as well as endorsement contracts with prominent celebrities. The announcement day return itself appears to play no role in the firm’s decision whether to terminate or not.
Resource and Energy Economics, 2008
Several recent papers propose competing theoretical explanations for the empirical observation of... more Several recent papers propose competing theoretical explanations for the empirical observation of an inverted U-shape relationship between enviromental degradation and per-capita income. We proprose the following test of the theory: calibrate a theoretical model to an already developed economy using information unrelated to the pollution-income curve. Then simulate the model starting from a less developed initial condition and compare the predicted pollutionincome relationship with that in the data. Our results are mixed. Some support exists for the theory that the inverted U-shape results from a corner solution in which less developed countries do not abate pollution. However, pollution peaks at a level of per capita income that is much lower than that observed in the U.S. data.