This dissertation traces the history of Mexico City’s municipal markets from a patchwork of sites of customary trade dating from the colonial era to a network of state-controlled modernist halls in the 1950s. It shows how, as small-scale vendors of tomatoes, straw hats, charcoal and all manner of every-day necessities plied their trade and fought to protect their livelihoods, their interactions with the government and other social groups and classes transformed the city’s markets and shaped the contours of popular politics in modern Mexico. More broadly, it uncovers vendors’ role in the dual process of economic development and state formation. / History

The number of farmers markets in the United States increased from 3,706 in 2004 to 8,268 in 2014 (Agriculture Marketing Service, 2014). Often times, small-scale agricultural producers do not harvest enough goods to be sold in large grocery store corporations and thus have turned to farmers' markets, roadside stands, you-pick operations, and community supported agriculture (CSA) shares as pathways for reaching customers directly (Chase & Winn, 1981; Payne, 2002). The purpose of this study was to explore and describe how such small-scale producers who participate in farmers' markets gain and develop business-related information and business skills. A single case study design developed and applied to explore the entrepreneurial learning environment relevant to small-scale agricultural producers in Cochise County, Arizona. The current study is framed conceptually by Politis's (2005) entrepreneurial learning model. The data was collected through semi-structured interviews, observations, and relevant documents. Data was organized and analyzed both ideographically and nomothetically. The findings indicate that some small-scale agricultural producers who reside in Cochise County, Arizona participate in Southern Arizona farmers' markets for economic viability and/or lifestyle reasons. The producers who participate in Southern Arizona farmers' markets as their sole means of generating income and/or to continue to be able to afford their engagement in agricultural activities were categorized under the economic viability theme. Those producers who participate in Southern Arizona farmers' market primarily to socialize and to exchange knowledge with community members and other farmers or ranchers were categorized under the lifestyle theme. The data also revealed that the participants engaged in entrepreneurial learning primarily within informal settings and through corresponding channels. While, informal learning is likely to remain the primary method of knowledge sharing across the small-scale agricultural producer community in Cochise County, Arizona. However, by providing such producers with greater opportunities to develop deeper and more robust knowledge and skills specific to entrepreneurship and small business development and management through non-formal learning opportunities (e.g., innovative Extension program), the number of producers with enhanced training capacities and cutting edge knowledge will increase across Cochise County.

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- / In an efficient market, prices adjust instantaneously toward their fundamental values; as a consequence prices should always reflect all available information. Here we consider market efficiency for new emerging markets in the Middle East region. Emerging markets are typically characterized by illiquidity, thin trading, and possibly non-linearity in returns generating process. Firstly, we adjust observed daily indices for nine Arab stock markets for infrequent trading, while the logistic map has been used to determine whether non-linearity exists in returns generating process. Next we used several econometric models to test for market efficiency. The results of runs test, variance ratio, serial correlation, BDS, and regression analysis indicate that we can reject the hypothesis that lagged price information cannot predict future prices. In other words, prices do not follow random walk properties; even after correction for thin trading. We next analyze volatility structure using GARCH models. The results of GARCH (1,1) model indicate that volatility clustering still seems to characterize some markets. While in three markets (Egypt, Kuwait, and Palestine) volatility seems to be persistent. Moreover, the results of EGARCH (1,1) model show that four markets (Bahrain, Dubai, Kuwait, and Oman) exhibit signs of leverage effect and asymmetric shocks to volatility. Compared with other emerging and international markets; Arab stock markets display relatively low rate of excessive volatility as indicated by Schwert model. Furthermore, the dependence in the second moment found to be quite enough to characterize the non-linear structure in the time series. Finally, we find that seasonality and calendar effects exist in Arab markets with three forms; day-of-the-week effect, month-of-the-year effect and the Halloween indicator. We conclude that Arab stock markets under examination are not efficient in the week form sense of efficient market hypothesis. There is a large body of empirical evidence that financial markets become highly integrated. According to modern portfolio theory, gains from international portfolio diversification are related inversely to the correlation of equity returns. The results of multivariate cointegration techniques, structural vector autoregression (SVAR) and vector autoregression (VAR) models indicate that, there is no cointegrating relation between Arab and international stock markets. The results of SVAR show that the linkage between international and Arab markets is very weak. Next we investigate the dynamic relationships among Arab markets them selves, and how do other factors; such as oil prices, affect the performance of these markets especially for Gulf Cooperation Council (GCC) stock markets. To do that, Arab markets have been divided into two sub-groups: oil production countries (GCC countries) and non-oil production countries (Jordan, Egypt, and Palestine). The results indicate the existence of long-run relation between markets, however, the short-run linkages still very weak. Non-oil countries’ markets can offer diversification benefits for rich GCC investors. Moreover, oil prices found to have a significant effect on GCC markets and dominate the long-run equilibrium. Oil prices play a significant role in affecting GCC markets’ volatility. While after the raise in oil prices; especially during the last two years, linkages between oil prices and GCC markets increased. Four GCC markets have predictive power on oil prices, with two markets to be predicted by oil prices. We conclude that Arab stock markets can offer diversification potentials for regional and international investors. Oil prices have a significant effect on GCC markets. Finally, we suggest a strategic plan to improve these markets based on two main broad goals, improving market efficiency and increasing market liberalization. To achieve these goals we identify specific targets and strategies that could be realized through tactical programs and activities.

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Market power mitigation has been an integral part of wholesale electricity markets since deregulation. In wholesale electricity markets, different regions in the US take different approaches to regulating market power. While the exercise of market power has received considerable attention in the literature, the issue of market power mitigation has attracted scant attention. In the first chapter, I examine the market power mitigation rules used in New York ISO (Independent System Operator) and California ISO (CAISO) with respect to day-ahead and real-time energy markets. I test whether markups associated with New York in-city generators would be lower with an alternative approach to mitigation, the CAISO approach. Results indicate the difference in markups between these two mitigation rules is driven by the shape of residual demand curves for suppliers. Analysis of residual demand curves faced by New York in-city suppliers show similar markups under both mitigation rules when no one supplier is necessary to meet the demand (i.e., when no supplier is pivotal). However, when some supplier is crucial for the market to clear, the mitigation rule adopted by the NYISO consistently leads to higher markups than would the CAISO rule. This result suggest that market power episodes in New York is confined to periods where some supplier is pivotal. As a result, I find that applying the CAISOs' mitigation rules to the New York market could lower wholesale electricity prices by 18%. The second chapter of my dissertation focuses on supply function equilibrium. In power markets, suppliers submit offer curves in auctions, indicating their willingness to supply at different price levels. Although firms are allowed to submit different offer curves for different time periods, surprisingly many firms stick to a single offer curve for the entire day. This essentially means that firms are submitting a single offer curve for multiple demand realizations. A suitable framework to analyze such oligopolistic competition between power market suppliers is supply function equilibrium models. Using detailed bidding data, I develop equilibrium in supply functions by restricting supplier offers to a class of supply functions. By collating equilibrium supply functions corresponding to different realizations of demand, I obtain a single optimal supply function for the entire day. Then I compare the resulting supply function with actual day-ahead offers in New York. In addition to supply function equilibrium, I also develop a conservative bidding approach in which each firm assumes that rivals bid at marginal costs. Results show that the supply functions derived from equilibrium bidding model in this paper is not consistent with actual bidding in New York. This result is mainly driven by the class of supply functions used in this study to generate the equilibrium. Further, actual offers do not resemble offers generated by the conservative bidding algorithm.

The purpose of this dissertation is to examine the informational role of audit client (i.e. firm) reputation in the auditor switching and retention decision. I perform an experimental examination of an analytical model, prescribing the optimal choices made by firms in the decision to retain or switch auditors without considering firm reputation. Using an experimental markets approach, I provide evidence of the market reaction to a firm's switch/retention decision under two alternative treatments. In the first (baseline) treatment, an explicit test of the analytical model, firms do not incur reputation effects when making the decision to switch or retain auditors. In the second treatment, firms consider market perceptions of opportunistic auditor switching and retention and the potential effects on the firm's reputation.The choice of auditor switching and retention is a significant component of the firm's corporate governance structure. I precisely measures reputation formation and its impact on this specific governance decision by the inclusion of prior period auditor switch/retention decisions made by firms in reputation treatment conditions. Prior archival research has demonstrated a link between auditor quality and earnings quality. These studies suggest that the retention of a high-quality auditor, or dismissal of a poor-quality auditor, can signal high quality earnings to the market. The converse is also suggested; retention of a poor-quality auditor, or dismissal of a high-quality auditor, can signal poor earnings quality. The decision to retain or switch auditors is made annually by firms who have superior information over their auditors and investors. In the short run, the decision to retain or switch auditors offers a temporary signal which the market may not clearly price. However, including the firm's track record of auditor switching and retention decisions among auditors of differing quality allows for the development of a positive or negative reputation on this portion of corporate governance.The results presented provide evidence of the model's descriptive validity for the firm's optimal choices and related market reaction to the auditor switching decision for a finite time horizon. Additionally, the study examines the market reaction to a firm's reputation on the auditor switching and retention decision.

Developing countries are quite attractive destinations for foreign investments in various economic sectors.Whether an MNC can successfully enter these markets embodies the aptitude to understand the external macroeconomic and social environment of the host country. An MNC must adjust their competitive stance, decipher adequate market potential and uncover the relevant entry strategy to acquire operational success. We have built a framework surrounded by essential operational strategy. This concerns matching a firm's resources and capabilities to the opportunities that arise in the external environment. In most common literature, emphasis lies within identification of profit opportunities in the external environment of the firm. Imperative emphasis shifts from the interface between strategy and the external environment; towards the interface between strategy and the internal environment. In this context, the concentration of the organization's resources and capabilities is targeted to combat turbulent external environments and devise a secure foundation for long term strategy. To understand why the resource-based view has had a major impact on strategy assessment, a preceding glimpse for strategy formulation can be considered. Conventionally, firms have answered the question “who are our customers?” “What are their needs we're seeking to serve?” “Who are our Competitors?” “How can gain a competitive advantage?” Through answering these questions in conjunction with macroeconomic analysis are inevitable prerequisites for pinpointing the key success factors (KSF) for the individual market segments. The KSF are the factors within the company's market environment that determine its ability to prosper and survive exploiting its core resources.

This paper examines the impact of CEO turnover from an internal capital allocation perspective. We test whether new CEOs make different divisional investment decisions than their predecessors, and if yes, how would this difference affect firm performance. We find that segment investments respond to factors, such as segment investment opportunity, segment cash flow, and other segments’ cash flows, differently after CEO turnover. Evidence also indicates that new CEOs adjust the segments’ previous over-investment /under-investment status to match industry average investment level, and they adjust the relative investment preference among divisions. These findings support the argument that different CEOs have their own set of skills and incentives, which directly affect their internal capital allocation decisions after they take over the office. We also examine the affiliation relationship between certain divisions and new CEOs, and find that new CEOs do not make capital allocation in favor their affiliated divisions. Furthermore, the analyses on firm-level internal capital allocation sensitivity do not support the literature about positive relationship between firm performance and the “Q-sensitivity”. But, our analyses do find a positive and robust relationship between changes in firm performance and changes in the “cash flow-sensitivity”. This suggests that new CEOs making internal capital allocation in favor of their “cash cow” segments are more likely to improve firm performance after CEO turnover.

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