This dataset (aka PACL, ACLP or CGV) is described in Cheibub, Jose Antonio, Jennifer Gandhi, and James Raymond Vreeland. 2010. "Democracy and Dictatorship Revisited." Public Choice, vol. 143, no. 2-1, pp. 67-101. DOI: 10.1007/s11127-009-9491-2. The full data and codebook can be downloaded here https://sites.google.com/site/joseantoniocheibub/datasets/democracy-and-dictatorship-revisited. The documentation below is directly copied from the codebook.

pacl

pacl_pmm

## Format

An object of class tbl_df (inherits from tbl, data.frame) with 9159 rows and 82 columns.

## Source

Cheibub, Jose Antonio, Jennifer Gandhi, and James Raymond Vreeland. 2010. "Democracy and Dictatorship Revisited." Public Choice, vol. 143, no. 2-1, pp. 67-101. DOI: 10.1007/s11127-009-9491-2. The full data and codebook can be downloaded here https://sites.google.com/site/joseantoniocheibub/datasets/democracy-and-dictatorship-revisited

## Details

order

Sequential numbering of rows (1 through 9159)

pacl_country

String country identifier.

year

Calendar year

aclpcode

Country identifier (numeric) used in previous versions of the regime classification contained in this dataset (the so-called ACLP, PPD, etc., databases). See Alvarez,Cheibub, Limongi, Przeworski 1996, Przeworski, Alvarez, Cheibub and Limongi 2000, andCheibub 2007.

pacl_cowcode

Correlates of war (numeric) country identifier.

cowcode2

Modified correlates of war (numeric) country identifier. See explanation under "Organizing the World."

ccdcodelet

Three letter country code used by the Cline Center for Democracy, University of Illinois at Urbana-Champaign.

ccdcodenum

Numeric country code used by the Cline Center for Democracy, University of Illinois at Urbana-Champaign.

aclpyear

Concatenation of aclpcode and year.

cowcode2year

Concatenation of cowcode2 and year.

cowcodeyear

Concatenation of cowcode and year.

chgterr

Dummy variable coded 1 for all the years of a country that experienced significant gains or losses of territory, 0 otherwise.

ychgterr

Dummy variable coded 1 for the year in which a country gained or lost significant parts of its territory, 0 otherwise.

flagc_cowcode2

Dummy variable coded 1 for the first year a country (defined by cowcode2) is observed in the dataset, 0 otherwise.

flage_cowcode2

Dummy variable coded 1 for the last year a country (defined by cowcode2) is observed in the dataset, 0 otherwise.

entry

Year the country is first observed in the dataset (repeated for all years a country is in the dataset).

exity

Year the country is last observed in the dataset (repeated for all years a country is in the dataset).

cid

From the introduction to the codebook: We do not assign new country codes to countries that experienced changes in their territories but which remained in existence after the change. These include, for instance, Pakistan (with the creation of Bangladesh in 1971), Cyprus (with the "creation" of Turkish Cyprus in 1983, a country not recognized as independent - and hence not in this dataset - but over which the "remaining" Cyprus does not govern), or Ethiopia (with the creation of Eritrea in 1993). The variable cid provides a country coding that treats these cases as separate countries.

wdicode

World Development Indicators (string) country identifier.

imf_code

International Monetary Fund (numeric) country identifier.

politycode

POLITY IV (numeric) country identifier.

bankscode

Banks (numeric) country identifier.

dpicode

DPI (string) country identifier.

uncode

United Nations (numeric) country identifier.

un_region

United Nations (numeric) geographic region identifier.

un_region_name

United Nations (string) geographic region identifier.

un_continent

United Nations (string) continent identifier.

un_continent_name

United Nations (numeric) continent identifier.

aclp_region

Alvarez, Cheibub, Limongi and Przeworski (1996, 2000) (numeric) region identifier.

bornyear

Year the country is first identified as such.

endyear

Year the country stops being identified as such

exselec

Mode of effective executive selection (from Banks to 2002, painted yellow in the excel file when modified; own coding from 2003 on): 1. Direct election (election of the effective executive by popular vote or the election of committed delegates for the purpose of executive selection) 2. Indirect election (selection of the effective executive by an elected assembly or by an elected but uncommitted electoral college) 3. Nonelective (any means of executive selection not involving a direct or indirect mandate from an electorate)

legselec

Mode of legislative selection (from Banks to 2002, painted yellow in the excel file when modified; own coding from 2003 on): 0. No legislature exists (includes cases in which there is a constituent assembly without ordinary legislative powers). 1. Non-elective legislature (examples include the selection of legislators by the effective executive, or on the basis of heredity or ascription) 2. Elective (legislators, or members of the lower house in a bicameral system, are selected by means of either direct or indirect popular election)

closed

Status of legislature. 0. Legislature is closed. 1. Legislature is appointed. 2. Legislature is elected

dejure

Legal status of parties0. All parties legally banned1. Legally single party state2. Multiple parties legally allowed

defacto

Existence of parties. 0 = No parties. 1 = One party. 2 = Multiple parties. N.B. We collected separate variables for dejure and defacto status of parties because legal status alone is not always a good reflection of empirical reality. Both dejure and defacto refer to existence of parties in general, not whether they have seats in the legislature. For this information see lparty.

defacto2

Existence of parties outside of regime front. 0. No parties1. One party or multiple parties, but they belong to regime front. 2. Multiple parties

lparty

Parties within the legislature. 0. Either no legislature or all members of the legislature are nonpartisan 1. Legislature with only members from the regime party2. Legislature with multiple parties

incumb

Consolidation of incumbent advantage. Dummy variable coded 1 if: (1) the regime year qualifies as a democratic regime and (2) sometime during its current tenure in office the incumbents (person, party, military hierarchy) unconstitutionally closed the lower houseof the national legislature and rewrote the rules in their favor. The rationale for this variable is discussed in Przeworski et al. (2000:20-22). We expand the action that characterizes consolidation of incumbent advantage to include cases in which the incumbent was first elected in multiparty elections but, for whatever reasons, the incumbent's term was extended and subsequent elections were postponed (e.g., Angola as of December 31, 2008).

type2

Dummy variable coded 1 for the cases excluded from the set of democracies uniquely because they violate the "alternation" rule; 0 otherwise. These are the cases that would be classified as democratic if the only criteria for democracy were multiparty (direct orindirect) executive and legislative elections. This, however, as discussed in Przeworski etal (2000:23-29) and in Cheibub, Vreeland and Gandhi (2009), is not sufficient to identify democracies. In the set of regimes that hold multiparty elections, some do it only because they know the opposition cannot win and others because the opposition would not be allowed to assume office if it won. The difficulty is that in many cases there is no historical evidence to allow the observer to distinguish these cases. Thus, it is possible that we might identify as a democracy a case that is a real dictatorship, or as a dictatorship a case that is a real democracy. The alternation rule, as well as the present variable, identifies the cases for which we do not have sufficient information to decide,according to our rules, whether the country is a democracy or not. Note on the type2 name: A type I error is a false positive and a type II error is a false negative. In the original project for which this variable was created,dictatorships were coded 1 (positive) and democracies 0 (negative). The variable was named to indicate that we had made a decision to avoid type II errors by coding as dictatorships cases that might have been a democracy (thus committing type I errors). In the current context, we think of democracy as the positive outcome and dictatorship as the negative outcome. We should, therefore, rename the variable type1 error since we decided to coded possible democracies (real 1s) as dictatorships (real 0s). In the end, it does not matter. What is important is that this variable can be used to easily reclassify regimes by either considering all cases coded as 1 in type2 as democracies or attempting to discriminate which ones are democracies and which ones are dictatorships.

collect

Dummy variable coded 1 when the effective head is characterized by collective leadership, 0 otherwise.

Number of changes in the nominal head of government in each year.

nmil

Dummy variable coded 1 if the nominal head is or ever was a member of the military by profession, 0 if civilian. Note that we code retired members of the military as NMIL=1since the shedding of a uniform is not necessarily enough to indicate the civilian character of a leader. Also note that we do not consider rulers who come to power as head of guerilla movements as military. Source: Compiled from Beinen and Van deWalle (1991), Beck et al. (2000), Banks (various years), Zarate (2001), Lentz (1994), and various internet sources as marked.

Name of the nominal head of government. Source: Compiled from Banks (various years), Beinen and Van de Walle (1991), Rulers website, Zarate (2001), and Lentz (1994).

npost

Political title of the nominal head of government. Source: Compiled from Banks (various years), Beinen and Van de Walle (1991), Rulers website, Zarate (2001), and Lentz (1994).

ndate

Date of entrance into power of nominal head of government. Source: Compiled fromBanks (various years), Beinen and Van de Walle (1991), Rulers website, Zarate (2001),and Lentz (1994).

Number of changes in the effective head of government in each year

ageeh

Age of the effective head's spell in office. There is no left censoring.

emil

Dummy variable coded 1 if the effective head is or ever was a member of the military by profession, 0 if civilian. Note that we code retired members of the military as EMIL=1since the shedding of a uniform is not necessarily enough to indicate the civilian character of a leader. Also note that we do not consider rulers who come to power as head of guerilla movements as military. Source: Compiled from Beinen and Van deWalle (1991), Beck et al. (2000), Banks (various years), Zarate (2001), Lentz (1994), and various internet sources as marked.

royal

Dummy variable coded 1 if the effective head is of hereditary royalty, 0 otherwise. To qualify as royal, the effective head must meet 2 qualifications: 1) rule under a title such as kings, emirs, sultans, and 2) have been preceded or succeeded by a relative. Part 1) means that Khama in Botswana, Mutesa in Uganda, Souvanna Phouma in Laos, Mohammed Daud in Afghanistan, and Sihanouk in Cambodia do not qualify as monarchs because they abdicated their places in the royal line to rule as heads of republics. Part 2) means that self-proclaimed royalty such as Bokassa in the Central African Republic are not monarchs. Source: Banks (various years), Lentz (1994).

Dummy variable coded 1 if the effective and nominal heads are different people, 0 otherwise. Source: Created from NHEAD and EHEAD.

Name of the effective head of government.Effective heads are: 1) presidents in presidential democracies; 2) prime ministers in parliamentary and mixed democracies, except in the cases of Djohar in Comoros andPreval in Haiti; 3) general-secretaries of the communist party in communist dictatorships, except in the case of Deng Xiaoping in China; 4) kings, presidents, and defacto rulers in non-communist dictatorships, except in the cases of Singapore, Malaysia,Cambodia, Laos, and Myanmar where the effective head is sometimes the prime minister; and 5) military or other figure when sources indicate nominal head is puppet figure. Included are acting or provisional governments, on the assumption that one cannot distinguish between cases in which heads attempted to consolidate power and failed from cases in which heads did not try to do so. Note that this variable, as all other variables with names beginning with "E," codes effective rulers as opposed to nominal ones. Source: Compiled from Banks (various years), Beinen and Van de Walle (1991),Rulers website, Zarate (2001), and Lentz (1994).

epost

Title of the effective head of government.Source: Compiled from Banks (various years), Beinen and Van de Walle (1991), da Graca(1985), Rulers website, Zarate (2001), and Lentz (1994).

edate

Date of entrance into power of effective head of government.Source: Compiled from Banks (various years), Beinen and Van de Walle (1991), da Graca(1985), Rulers website, Zarate (2001), and Lentz (1994).

tenure08

Total number of years (up to and including the year 2002) the effective head of government is in power. Tenure is invariant during the spell of each head.

comm

Dummy variable coded 1 if the ruler is the Communist Party leader, 0 otherwise.Source: Banks (various years), Lentz (1994).

ecens08

Dummy variable coded 0 for the last year of an effective head's tenure due to death or for the last year of effective heads that lasted beyond the time of the last observation,usually 1996, and 1 otherwise. ecens08 = 0 for rulers who entered as dictators and then legitimately won an election and became democrats. Source: Compiled from Banks (various years), Beinen and Van de Walle (1991), da Graca (1985), Rulers website, Zarate(2001), and Lentz (1994).

edeath

Dummy variable coded 0 for the last year of the effective head's spell due to the head's death and 1 otherwise. We do not distinguish between natural death, assassination,suicide, and accidents. Source: Banks' Political Handbook, Bienen and Van de Walle(1991), Rulers website, and Zarate (2001).

flagh

Dummy variable coded 1 for the first year an effective head of government is first observed, 0 otherwise.

democracy

Dummy variable coded 1 if the regime qualifies as democratic. The conditions for this variable are the following: democracy=1 ifexselec <2 (and)legselec=2 (and) closed=2 (and) dejure=2 (and) defacto=2 (and) defacto2=2 (and) lparty=2 (and) type2=0 (and) incumb=0.

assconfid

Dummy variable coded 1 if the regime is a democracy and the government is subject to assembly confidence, 0 otherwise. Assembly confidence refers to collective cabinet responsibility and must include the head of government. All cases in which assembly confidence is explicitly stated in the constitution are coded 1. Cases in which assembly confidence is not explicitly stated in the constitution (i.e., Iceland) or there is no constitution (i.e., England) are included when we observed at least one instance of successful government removal via a parliamentary vote of no confidence since 1946.

poppreselec

Dummy variable coded 1 if the regime is a democracy and the head of state is chosen via popular election. Note that it is possible that a country will have no direct presidential elections, poppreselec=0, and still be presidential. These are the cases in which presidents are indirectly elected (exselec=2)

regime

Six-fold regime classification. 0. Parliamentary democracy 1. Mixed (semi-presidential) democracy 2. Presidential democracy 3. Civilian dictatorship 4. Military dictatorship 5. Royal dictatorship

tt

Dummy variable coded 1 when there is a transition to or from democracy, 0 otherwise.

ttd

Dummy variable coded 1 when there is a transition to democracy, 0 otherwise.

tta

Dummy variable coded 1 when there is a transition to dictatorship, 0 otherwise.

flagdem

Dummy variable coded 1 for the first year a country is observed or a new regime (as defined by democracy) emerges, 0 otherwise.

flagreg

Dummy variable coded 1 for the first year a country is observed or a new regime (as defined by regime) emerges, 0 otherwise.

agedem

Age in years of the current regime as classified by democracy. The year in which the regime comes into existence is coded as 1. When applicable, ages were extended back as far as 1870.

agereg

Age in years of the current regime as classified by regime. The year in which the regime comes into existence is coded as 1. When applicable, ages were extended back as far as 1870.

stra

Sum of past transitions to authoritarianism in a country. If a country experienced more than one transition to authoritarianism before 1946, STRA is coded 1 in 1946.

## Organizing the world

As simple as it may be, there is no one system of numbering the countries of the world that would allow scholars to easily merge all the varied datasets into one overall dataset. The difficulty, of course, comes from the fact that countries come and go and countries sometimes change significantly their territorial basis while retaining their old names. For some analyses (e.g., for economic or demographic time series), we want to mark the fact that Pakistan lost the territory that became Bangladesh in 1971, or that Ethiopia lost the territory that became Eritrea in 1993, or that Indonesia lost the territory that became East Timor in 2002. At the same time, for some other analyses (e.g., those related to the occurrence of elections and the changes of heads of state and government), the fact that some territory was lost is irrelevant. For the first type of analyses, Pakistan before 1971 should be treated as a different country as Pakistan after 1971. For the second type of analyses, Pakistan between 1947 and 2008 should be treated as one country. The solution we found to be the most flexible is the following:

1. We follow the Correlates of War country code, since this seems to be the most complete and widely used country identifier available. We create four additional country codes (which do not match any COW country code):

2. COW assigns one code to Yugoslavia from 1946 through 2008. We consider that Yugoslavia (COW = 345) stopped existing in 1991 and assign a new country code to Serbia and Montenegro (1991-2006) and to Serbia (2006-)

3. COW assigns one code to the USSR/Russia from 1946 through 2008. We consider that the USSR (COW=365) stopped existing in 1991 and assign a new code to Russia (1991-).

4. COW assigns one number to Vietnam between 1954 and 2008 and another to South Vietnam between 1954 and 1975. We assign different codes for South Vietnam (1954-1976), North Vietnam (1954-1976) and Vietnam (1976- present).

We do not assign new country codes to countries that experienced changes in their territories but which remained in existence after the change. These include, for instance, Pakistan (with the creation of Bangladesh in 1971), Cyprus (with the "creation" of Turkish Cyprus in 1983, a country not recognized as independent - and hence not in this dataset - but over which the "remaining" Cyprus does not govern), or Ethiopia (with the creation of Eritrea in 1993). The variable cid provides a country coding that treats these cases as separate countries.

## Standard descriptive variables (generated by this package)

extended_country_name

The name of the country in the Gleditsch-Ward system of states, or the official name of the entity (for non-sovereign entities and states not in the Gleditsch and Ward system of states) or else a common name for disputed cases that do not have an official name (e.g., Western Sahara, Hyderabad). The Gleditsch and Ward scheme sometimes indicates the common name of the country and (in parentheses) the name of an earlier incarnation of the state: thus, they have Germany (Prussia), Russia (Soviet Union), Madagascar (Malagasy), etc. For details, see Gleditsch, Kristian S. & Michael D. Ward. 1999. "Interstate System Membership: A Revised List of the Independent States since 1816." International Interactions 25: 393-413. The list can be found at http://privatewww.essex.ac.uk/~ksg/statelist.html.

GWn

Gleditsch and Ward's numeric country code, from the Gleditsch and Ward list of independent states.

cown

The Correlates of War numeric country code, 2016 version. This differs from Gleditsch and Ward's numeric country code in a few cases. See http://www.correlatesofwar.org/data-sets/state-system-membership for the full list.

in_GW_system

Whether the state is "in system" (that is, is independent and sovereign), according to Gleditsch and Ward, for this particular date. Matches at the end of the year; so, for example South Vietnam 1975 is FALSE because, according to Gleditsch and Ward, the country ended on April 1975 (being absorbed by North Vietnam). It is also TRUE for dates beyond 2012 for countries that did not end by then, depsite the fact that the Gleditsch and Ward list has not been updated since.

## Note

The pacl_pmm version of this data is taken from from Pemstein, Daniel, Stephen A. Meserve, and James Melton. 2013. It only contains the numberic version of the variable democracy in the original dataset. "Replication data for: Democratic Compromise: A Latent Variable Analysis of Ten Measures of Regime Type." In: Harvard Dataverse. http://hdl.handle.net/1902.1/PMM. The original dataset is found in pacl. pacl_pmm is missing a few country-years when compared with pacl.

Other democracy: LIED, PIPE, anckar, arat_pmm, blm, bmr, bnr, bollen_pmm, doorenspleet, download_fh_electoral, download_fh, download_reign, download_wgi_voice_and_accountability, eiu, fh_pmm, gwf_all, hadenius_pmm, kailitz, magaloni, mainwaring, munck_pmm, peps, pitf, polity_pmm, polyarchy_dimensions, polyarchy, prc_gasiorowski, svmdi, svolik_regime, uds_2014, ulfelder, utip, vanhanen, wahman_teorell_hadenius
Other PMM replication data: arat_pmm, blm, bollen_pmm, fh_pmm, hadenius_pmm, mainwaring, munck_pmm, polity_pmm, prc_gasiorowski
Other dichotomous democracy indexes: anckar, bmr, bnr, doorenspleet, kailitz, svolik_regime, ulfelder, utip, wahman_teorell_hadenius