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How Much Does Political Uncertainty Matter? The Case of Louisiana under Huey Long

Published online by Cambridge University Press:  21 February 2017

Gabriel Mathy
Affiliation:
Gabriel Mathy is Assistant Professor, Department of Economics, American University, 4400 Massachusetts Avenue, NW, Washington, DC 20016 E-mail: mathy@american.edu
Nicolas L. Ziebarth
Affiliation:
Nicolas L. Ziebarth is Assistant Professor, Economics, University of Iowa, W344 Pappajohn Business Building (PBB), Iowa City, IA 52242 and NBER, 1050 Massachusetts Ave, Cambridge, MA 02138 E-mail: nicolas.lehmannziebarth@gmail.com
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Abstract

We study the effect of political uncertainty on economic outcomes using the case of Huey Long's tenure as governor and senator of Louisiana during the Great Depression. Based on primary sources, we construct two well-established measures of uncertainty specifically for Louisiana: stock price volatility and newspaper mentions of terms related to “uncertainty” and the economy. Combining these uncertainty measures with employment data from the Census of Manufactures, we attempt to identify the effects of political uncertainty using the state of Mississippi as a control group. We find little support for a negative effect from political uncertainty in Huey Long's Louisiana.

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Articles
Copyright
Copyright © The Economic History Association 2017 
Figure 0

Figure 1 Chronology of Major Political Uncertainty Events Related to Huey Long

Source: See text for description of events
Figure 1

Figure 2 Stock price and volatility series

Notes: Panel (a) is the monthly return on New Orleans Stock Exchange, calculated as the log difference between the NOSE stock index between one month and the previous month. Panel (b) is monthly stock index volatility calculated as the monthly standard deviation of daily log returns for NOSE index. Louisiana stocks refer to the stock index which is only composed of Louisiana companies.Notes: Panel (c) is for Louisiana based stocks on NYSE. These include the Louisiana Oil Refining Company, Penick & Ford, and Standard Oil of New Jersey (which had major operations in Louisiana).Sources: New Orleans Times Picayune and Center for Research on Security Prices (CRSP).
Figure 2

Figure 3 Newspaper uncertainty measures

Notes: Panel (a) is calculated using the number of monthly article mentions of “economic uncertainty” in the New Orleans Times Picayune(NOTP). The Louisiana Commercial Uncertainty Index replaces the term “economic” with “commercial.” Panel (b) displays an extended index including the terms “tax” or “oil” or “impeachment” or “Share our Wealth” or “Square Deal” in the NOTP. The Louisiana Huey Political Uncertainty Index is based on the terms “Huey” or “Long” or “Kingfish.” The Louisiana Huey Political & Commercial Uncertainty Index is formed using the number of monthly article mentions of “commercial” instead of “economic.” All series are smoothed using a Baxter-King band-pass filter. Black lines indicate Long's tenure as governor or senator.Sources: New Orleans Times Picayuneand The New York Times.See the text for more details.Notes: Panel (c) displays the Louisiana Economic Uncertainty Index formed using the number of monthly article mentions of either the words “economic” or “economy” and “uncertain” or “uncertainty” in the NOTP. The National Economic Uncertainty Index uses the same search terms but searches The New York Times. All series are smoothed using a Baxter-King band-pass filter. Black lines indicate Long's tenure as governor or senator.Sources: New Orleans Times Picayuneand The New York Times.See the text for more details.
Figure 3

Table 1 Comparing Louisiana to Mississippi

Figure 4

Figure 4 Comparison of Louisiana and Mississippi climates

Source: weather.com
Figure 5

Table 2 Effects of uncertainty using the full sample of plants in Louisiana and Mississippi

Figure 6

Table 3 Effects of uncertainty restricting attention to plants in counties on the border of Louisiana and Mississippi

Figure 7

Figure 5 Personal Income per Capita in Louisiana and neighboring states to 1929 values as 100. Black line refers to the Long assassination year

Source: Bureau of Economic Analysis.
Figure 8

Figure 6 Non-agricultural Employment Indexes normalized to 1929 values for Louisiana and surrounding states

Source: Wallis (1989).
Figure 9

Figure 7 Ratio of Louisiana Oil Production to Texas and U.S. Oil Production based on figures

Source: Department of Commerce's Bureau of Mines Minerals Yearbook, published in U.S. Statistical Yearbook
Figure 10

Table 4 Event studies of excess stock returns for Louisiana-based stocks listed on the NYSE

Figure 11

Table 5 Effect of assassination of Huey Long on employment

Figure 12

Table 6 Effects of uncertainty restricting attention to plants in the manufactured ice industry, a non-tradeable product

Figure 13

Table 7 Effects of uncertainty across quantiles of plant size as measured by employment in January of given year

Figure 14

Table 8 Effects of Long's assassination across plant size quartiles as measured by employment count in January of given year

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